ROCK BALL - Grip Strength Trainer
ROCK BALL - Grip Strength Trainer
Compact rotating grip trainer for building pulling-strength, shoulder control, and finger stability under movement.
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The Rock Ball is a compact grip trainer designed to build hand, wrist, and forearm strength through textured surfaces and a rotating grip that keeps movement fluid. Its asymmetrical dimples and swivel-mounted eye bolt create a dynamic training feel, making it useful for open-hand power, pinch control, and real-world grip adaptation.
It is especially well suited to lock-offs, compression moves, and awkward body positions, helping build the arm and shoulder strength that keeps those movements controlled. The rotating grip also teaches your fingers to stay stable under movement, giving you more authority on the wall. Supplied with a short webbed strap, steel D-rings, and a 12 kN wire-gate carabiner, it is quick to set up for single-arm or paired training sessions.
Shipping, Returns & Warranty
Shipping, Returns & Warranty
30-day returns on all products.
See Returns & Refund Policy.
Shipping is calculated at checkout.
Priority and express shipping available.
See Shipping Info.
Australia - GST included.
USA - Tariffs calculated at checkout.
Europe - VAT and import duties not included. See Shipping Policy.
Production, Materials & Colour
Production, Materials & Colour
For our core range, we use advanced 3D printing, high-grade, plant based, bio material, and rigouros strength testing methods. This allows us to produce engineered gear with refined features, reliable strength, and dependable performance. For all other products we combine quality material choices with optimal pricing to create gear you can trust session after session.
Our packaging and mailing satchels are compostable to help reduce the use of conventional plastics.
Colours may vary slightly in presentation across different devices and between production batches.
Learn more on our Technical Info page.
Important Info for Young Users
Important Info for Young Users
Using crimp holds or performing no hang training incorrectly can lead to injury. Please refer to our article Info For Young Climbers.
Environmental responsibility
Environmental responsibility
We use a plant based bio material for our 3d printed products. This is not a petroleum based plastic and does not harm the environment.
Our packaging and mailing satchels are compostable in your garden, or will biodegrade on their own. Even our packing tape can be fed to the worms!
Wherever possible we use environmentally responsible products.
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Topp
I love how small it is and how i can practice at my desk while im the office!
I’ve been using this product for months and I love it it’s so easy to set up and helps me get some finger training in no matter where I go so I can always come back climbing strong
I actually bought this for my boyfriend as a birthday gift, hes someone who trains his grip often before climbing and he loves it, very practical and great gift for yourself or someone else who climbs
I tried to find this product for so long lol, finally to be able to record myself climbing normally
Pretty cool board, can be put in my chalk bag pocket and use any time any where for training and lifting.
I would love to review the item but I havent recieved it and trying to contact customer service is difficult. Australia post said they have returned the item but I have not heard from crux gear.
Hi Angela.
We've emailed you a bunch of times, please check your email and spam folder so we can complete your delivery.
Great product
Quick shipping and delivery. Product received is just as shown. Very helpful finger training tool to train anywhete anytime.
Great for warm ups