SideWinder® Grip Twister #4 Hand, Finger, Wrist and Thumb Tool


  • Blow up and strengthen your wrists, fingers and thumbs – and the forearms along the way

In stock (can be backordered)



The Grip Twister #4 was designed specifically for the wrist, hand, fingers and thumbs. Click here to see who uses our products

The Grip Twister is a precision made unit crafted from aluminum and anodized for strength and durability with a sleek stainless look.

A self contained unit with an adjustible tension knob for an easy transition of resistance. It is highly capable of helping sport enthusiasts and the athlete seeking serious hand & wrist strength in professional sports.

Excellent for rehabing if you have weak hands or just need a tune up or rehabing a fractured wrist or fingers, then this is the device for you. All products are able to help you to regain your hand function and strength. Controlled motion is one of the best features to ensure that you will not cause further injuries. It is also portable-carry it anywhere. (Please check with your physician prior to using)

Fat Grip Training with 4.25 inch diameter handles which forces more of your muscles to fire up and grow! Adjustable tension from zero to impossible. Grip ready knurling on both handles and inside knurling on the left handle for special pinch exercise. Resistance and repetition coupled with consistency are the keys to making YOURS a success Story! Compact enough to go where you go, It's soon to become a favorite of your workout regime  We stand behind our products because they are made TOUGH!

Please note: Our Grip Twisters are made of aluminum, and BEFORE  the anodization process is applied, our products may sport a few differences in the knurling and may have minor machining marks. This is normal and does not affect the operation of the product, nor the warranty of our product.  There are NO RETURNS for this as it is part of the unit being hand assembled in our warehouse.


Additional Benefits of Anodizing:
Anodized aluminum parts are commonly found in aircraft and architectural components, as well as consumer goods such as appliances (refrigerators, microwaves, and barbecues), sporting goods (baseball bats, golf carts, and fishing equipment) and electronics (televisions, smartphones, and computers).
The broad-based benefits of anodizing include:
*It's a very thin coating compared to paints and powders.

*Extremely durable, hard, abrasion resistant and long lasting. The coating does not peel or chip. Much harder surface than paint and powders.
*Lasts indefinitely.
*Environmentally friendly finish. Can easily be recycled.



Same day shipping on orders received before noon during normal business hours.

Made in AMERICA of course!

Additional information

Weight 4 lbs
Dimensions 6 × 6 × 5 in


Weight- 3 1/2″ lbs.

Length- 4 1/4″

Diameter- 4 1/4″

* Crafted from aluminum and anodized for strength
and durability
* The anodized clear coat has a sleek stainless steel look
* A self contained unit with an adjustable tension knob
* The tension knob is fully adjustable from 0 to impossible
* In the Sidewinder tradition the GRIP TWISTER requires
NO weights, ropes or pulleys



GRIP TWISTER REVIEWS- See what others are saying about our products!


5.0 out of 5 stars  Excellent product.

January 29, 2017

Verified Purchase

Insane build quality, perfectly smooth action and adjustment. I’m not sure how the mechanism inside is designed but the resistance is perfectly uniform throughout the movement unlike various hand trainers with crudely designed springs that are very difficult at the peak of the range of motion and easy at the bottom. I have not used this for any length of time to be able to report results but I have trained my forearms in a multitude of ways and already this provides me with a good challenge. HIGHLY recommend and worth the money for sur


Weekly reader

5.0 out of 5 stars Five Stars

June 9, 2017

Verified Purchase

I can get rid of a lot of less effective bulkier gear



5.0 out of 5 stars  Awesome construction

December 5, 2016

Verified Purchase

Awesome work out!



5.0 out of 5 stars  They did it again!

May 27, 2015

Verified Purchase

What an amazing device. Blew my arm up in ways I usually can’t achieve. Much better than the Twist yo Grip, and made of high quality materials. The jar opening is an obvious use for this device but the pinch grip exercises will hit your hands in ways they are not used to, very happy about my purchase.


5.0 out of 5 stars  great build quality.

March 17, 2017

Verified Purchase

awesome piece of equipment, love the burn i get when i rep out. highly recommend.

 Darin Waldram

5.0 out of 5 stars Five Stars

July 6, 2017

Verified Purchase

Love it love it love it!!!



5.0 out of 5 stars That good burn from muscle work

June 29, 2016

Verified Purchase

Excellent product


Norman Houston

5.0 out of 5 stars I give Grip Twister 5 stars

June 10, 2016

Verified Purchase

It is a very good piece of equipment to work your grip. I like it because it is well made, recommend it for everyone !


4.0 out of 5 stars  Perfect way to get your forearms tuned/pumped

By Brad Allen on October 27, 2016

Verified Purchase

I purchased their sidewinder pro xtreme 3 and loved the quality and the results after using it- so I picked this up too. Like all their products it is very high quality. It has a solid, industrial look and feel to it. The workout it provides really thickens the wrist area and gives a quality workout for your fingers and forearms. This combined with their pro extreme will have your wrists/forearms and grip tuned up and better than any other workout I can think of.


5.0 out of 5 stars  excellent

on September 1, 2016

Verified Purchase

can easily use this for hours, and get a nice burn in the forearms when you stop


5.0 out of 5 stars Five Stars

By mvis on July 16, 2016

Verified Purchase

Made of very high quality material – not some cheap stuff. Heavy, too.


4.0 out of 5 stars

By Sidewinder customer on October 25, 2015

Verified Purchase

Pricey, but worth it.
This is a good compliment with crushing grippers

Can be creative and do lots of interesting movements with this! Like how the individual fingers can be worked!

One must be careful to not strain their wrist because of the intense strain that these ligaments/tendons/muscles/connective tissues are not used to. Love to use this in conjunction with my other grip strength (and variants), but if one day like a week or two later you have random-unexplained pains when twisting the wrist it may be wise to tone it down and go for more lower-resistance/ fewer reps.
[be careful with over/hyper extending/flexion/rotations/pronation/supination]

Really solid (as heavy as advertised) and can expect to hand this down to the next generation and I am only 24yo.

5.0 out of 5 stars   Awesome product!  Awesome fast shipping

By Tim Marburger on June 7, 2016

Verified Purchase

Awesome product! Awesome fast shipping! Thank you!


5.0 out of 5 stars  Fantastic product.

By whatever on January 23, 2016

Verified Purchase

Absolute highest quality. Fantastic product.


5.0 out of 5 stars  Older hands? Look this one over it may be just what you need.

By  PlanManon July 9, 2015


I’m 60 years young…okay…old, and have some minor osteoarthritis that I’ve mentioned in prior reviews of exercise equipment. I say that for those of you with arthritis or age/injury related joint problems. You can do a lot on your own with the right knowledge and equipment. Checkout some of my reviews if you’re interested.

I have 3 of the Sidewinder products. The Sidewinder Pro XTREME in my home gym, the Sidewinder Pro in my office, and now this new product from Sidewinder the Grip Twister…also kept at the office.

All sidewinder products are very well made. The Pro doesn’t have the smooth glide you get with the XTREME due to different internal parts. You can read more about that on each product’s review page where I’ve posted. The Grip Twister I’m happy to report has the clean and smooth glide action I get with the XTREME.

I use Grip Twister in the morning to “wake” my stiff hands and fingers up, and during the day when typing on a keyboard makes my hands feel fatigued and sore. The resistance can be widely varied and the multiple exercises include hands, fingers, grip strength, wrist and forearms primarily. I’m disappointed that Sportsgrips hasn’t posted a detailed “How To” video on YouTube or their website. There are a total of two videos out there both of which are more of a review of the product rather than an educational video on ways to use the Grip Twister.

It comes with a single glossy page illustrating 6 basic exercises but a detailed video would be much more useful.

For specialized finger, hand and forearm exercise this is very useful piece of equipment.



5.0 out of 5 stars  Another solid piece of grip equipment by Sportgrips

By Duff McDuffee on September 19, 2015

This hefty little device from the makers of the excellent SideWinder Pro XTREME is an upgrade to Ironmind’s  Twist Yo’ Wrist yo-yo like wrist roller. Unlike the Twist Yo’ Wrist, the Grip Twister does not need any weight plates for the resistance is controlled through a dial on the side. Like the SideWinder Pro XTREME, the Grip Twister is an amazingly well-crafted device: you can feel the quality in your hands. The action is incredibly smooth and silent.

It comes with a list of a few exercises you can do for fingers, grip, and thumb, but I find myself gravitating to just 2 exercises: one with fingers extended and one like opening a jar lid.

The metal knurling surprised me by how sharp it is. There is no way your hands or fingers will slip with this thing, even if they are sweaty. That said, my dainty keyboard-jockey fingers definitely got some exfoliating the first time I twisted this thing. It’s like a thousand tiny knives gripping at your skin, but no serious damage was done.

This thing is BIG. I am 6’5″ with big hands and can barely get my hands around it, which I guess is the point. It will challenge your open-handed grip in ways you didn’t know you lacked strength.

I find this is a useful “finisher” after using the SideWinder Pro XTREME. Using it by itself, I don’t find that it hits the forearms very hard as compared to the SideWinder. But it does do something interesting to the grip and especially the fingers that I was not getting from any other device. Even as I type right now I can feel the effects of using the Grip Twister yesterday, a feeling of increased awareness and strength in my fingers.

This is not necessarily a piece of equipment that everybody needs to have in their home gym. It is a specialized but very high-quality piece of equipment that could certainly benefit individuals looking to rehab hand, forearm, or finger injuries, for grip enthusiasts, or for older people wanting to maintain or improve grip or finger strength. Honestly it’s also kind of an interesting aesthetic experience to hold anything manufactured by Sportgrips because these pricey pieces of equipment are manufactured to such an amazingly high quality.

If you are wondering if you should get this or the SideWinder Pro XTREME, I’d recommend the SideWinder first. If you fall in love with the SideWinder as I did and want to also add the Grip Twister to your hand and forearm workouts, then at that point you might also want to purchase a GripTwister.


3.0 out of 5 stars It’s functional but wheels need to be somewhat smaller and …

By  Kenneth sEPP on November 10, 2015

Verified Purchase

It’s functional but wheels need to be somewhat smaller and knurlung is too rough. For average sized hands, too much stress on finger tips. Would prefer more stress on wrists, forearms, and grip.

*Sidewinder inventor Chris Nieman recommends wearing training gloves if your hands are sensitive or until your hands toughen up.



5.0 out of 5 stars  Boom! Boom!! FIREPOWER!!!

By ACR505 on January 27, 2016

Verified Purchase

Ha this things got my forearms… Bigger! Faster!! Stronger!!! Well, I mean my forearms are much more bigger and toned. But even if you already workout don’t overexert yourself because as soon as I got this I was doing too much and my joints and tendons were sore for a few days. I bought this because I have skinny firearms. I needed to get my forearms larger and have tried squeezies and other stuff but finally choose to get this because of the good reviews I saw from verified amazon purchasers. This tool makes my arms look soo much better. Totally worth the money! Awesomesauce!!!


5.0 out of 5 stars

By Timber on Juneliminates Elbow Pains 10, 2017

Verified Purchase

Sidewinder Grip Twister: i had tennis elbow. At least 3 muscles were involved. Although i used 6 months rest and handbell forearm exercises, palm down , palm up and vertical positions, I still had severe pain when i opened a jar or shook hands. The forearm and each finger has it’s own muscles to be strengthened; i learned by the pain I felt. So, i bought this and used it for 3 sets of 12 once per week and gripped a hand gripper for 2 sets of 8 once per week. This may seem light, but remember I was in excrutiating pain. Now all pain is gone after one month! One month wont make you strong, but the result was no pain! I started doing a rope pull today. Be sure you only exercise once per 7 or 8 days. It takes this time to recover your tendons and muscles. You need the recovery time otherwise you will continue in pain. Also rub the tendon firmly to unclog your tendon from its tendancy to retain old cells which hold up blood flow and the clearing function.

This thing is machined like a Ferrari engine. It strengthens muscles that barbells dont hit. When I die, they are going to wonder what this thing is when my estate is sold off. I recommend it.

If you are over 50 years, you are losing your grip strength daily. This roller plus other devices will make you stronger than you were when you were 18!



5.0 out of 5 stars Excellent product.

By  Brianon January 29, 2017

Insane build quality, perfectly smooth action and adjustment. I’m not sure how the mechanism inside is designed but the resistance is perfectly uniform throughout the movement unlike various hand trainers with crudely designed springs that are very difficult at the peak of the range of motion and easy at the bottom. I have not used this for any length of time to be able to report results but I have trained my forearms in a multitude of ways and already this provides me with a good challenge. HIGHLY recommend and worth the money for sure.


3.0 out of 5 stars It’s functional but wheels need to be somewhat smaller and …

ByKenneth sEPPon November 10, 2015

It’s functional but wheels need to be somewhat smaller and knurlung is too rough. For average sized hands, too much stress on finger tips. Would prefer more stress on wrists, forearms, and grip.



5.0 out of 5 stars  Great piece of equipment!

By LibrumVINE VOICE on April 26, 2017

I picked this item up, together with the company’s Sidewinder ProXtreme, a couple days ago. So, I’m only beginning to work with it. But my judgement so far is: this is a fantastic addition to my strength training regiment. Besides being superbly well designed for the various types of grip training it’s advertised as enabling, the Grip Twister is also a very impressive piece of engineering. I’m incredibly impressed with this company’s products. Like I just wrote, in my review of the Sidewinder ProXtreme, the only unknown for me is whether the Grip Twister is built to last. Considering the hefty pricetag, that’s definitely my expectation. Considering what a solid piece of equipment this is, I’m hopeful it will last a very long time. If it does, then the price I paid is entirely worth it. The Grip Twister and the ProXtreme are all the equipment you need for a total arm workout on the road, and they’re phenomenal components of any home gym.


5.0 out of 5 stars  Top Fuel  

By  bacala  on June 3, 2015

Verified Purchase

This device is a professional piece of equipment and not some yo-yo toy like “some” companies make.This device can used at multiple angles, and finger and thumb configurations.Extensors can also be used by pushing out from the insides of the rims while turning.Tension can be increased from easy to very difficult.Great finger,thumb,and forearm workout.



By DG on May 10, 2017

Verified Purchase

The Department of Veteran Affairs Should Issue These For Veterans With Carpal Tunnel, Arthritis, Hand Weakness etc…
This is a great piece of equipment. Utilizing this, the sidewinder grip bar, grip rings, finger stretchers, and eagle catcher, in a few short weeks was able to significantly increase my grip strength from around 80-lbs to over 100-lbs in both hands and significantly reduce pain in both my hands/ fingers. The Department of Veteran Affairs should really look at issuing these items to veterans with carpal tunnel, arthritis and hand weakness, etc….

Furthermore, for those Engineer’s out there, or those unfamiliar with this type of 2nd-order “meaning”, this is a great example of a 5th-Wheel, in action…….(see Merriam-Webster Dictionary application for IPhone for further “clarity” )

Furthermore, I own this along with the “Side-winder2” “Pro” – Wrist, Forearm, Grip Strengthener #2, Adjustable Resistance – and it is sort of “like” they fit together to form some “type” of special device- perhaps???? I place them end to end an as if almost by “magnetism” or “static” they stuck together?!?! Also, if roll them around one on top the other it is like a “Yoga” bowl for “sound/ noise”!!! Finally, they are in fact heavy enough, if carried in a bag to be utilized as weapons, such as a “steel” “collapsible” “baton”…or a “lock” in a sock! Whether this was intended or not is “well” “beyond” me! However, it begs a question, as in “SF/ SPEC” Ops community and even Krav Maga- and other forms of “self-defense” everything can be viewed as a weapon, from a rolled up “news” paper to a simple “kat’s” toy, such as a “fish” on a “string-“aka” a “whip”!!!!

It is a “puzzle…” just like many newspaper “cross-word” puzzles are and vary in “difficuilty”…..

So, if that is the case, then why are other items banned by local and Federal government…… “For other’s well above me to ponder, such as our “elected” officials, etc….as simply cannot ban everything… or, simply ‘Can” they????????.”



5.0 out of 5 stars  Love this thing

By Jacob on August 11, 2017

Verified Purchase

Love this thing. Kinda expensive but worth it as long as it lasts. It seems well constructed and the easily adjustable resistance can provide a wide range of options. Great for using when I’m hanging on the couch after work or brainstorming at work.



5.0 out of 5 stars  Solid built and it has good weight to it

By  young jeon  on November 6, 2015

I’ve bought a used one from a person who wasn’t using this quite well enough to meet the satisfaction. I aslo have sidewinder xtreme and loving it.
The twister is really a decent piece of device that can hit various angles for your wrist. It’s a must have item to your collection.
Solid built and it has good weight to it.
It’s like universal machines at the gym. Very comfortable to use this at anywhere anyplace.
I recommend this company to all my acquaintances and they’re pretty popular in Korea now for shaping/building forearms.


5.0 out of 5 stars  Impressive results…

By Kowboy on August 14, 2016

Verified Purchase

This is one of the best products I have purchased in recent years. The engineering is impressive and the results have been better than expected. I was hoping to improve my grip strength and the dexterity of my fingers and hands. After only 3 weeks, my hands and wrist were not only stronger, but more stable when gripping. This has improved my golf grip, handshake and ability to open any jar in the kitchen with ease.

3.0 out of 5 stars   The knurling is too rough if you have strong grip …By Ren on July 8, 2017

Verified Purchase

The knurling is too rough if you have strong grip, need to use a pair of gloves if you don’t want to lose a layer of skin

*If you have sensitive or tender hands, please do use training gloves


5.0 out of 5 stars  Five Stars

By  jerry siller  on February 21, 2016

I was skeptical because of the price , but folks, this device has satisfied me more than any other product that I’ve bought online. It works my hands and fingers every time I use it . I definitely give it a five star.


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