BOULDER BALL - Open-hand Grip Trainer

Color: Deep Blue

Portable open-hand and wide-pinch trainer for building strength on slopers, rounded holds, and comp-style volumes.

$52.00 AUD

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The Boulder Ball is a compact grip trainer designed for open-hand and wide-pinch strength, making it especially useful for climbers training for slopers, wide pinches, rounded holds, and comp-style volumes.

Its shape and grip options make it well suited to dynamic climbing demands, helping you build the kind of open-hand strength and wrist control that carries over to modern movement styles. It also adapts easily for pull-ups, no-hang work, resistance training, and warm-ups, giving you more versatility in one tool.

At 165g and supplied with a 12 kN carabiner, it is easy to pack, quick to set up, and built for regular training at home, in the gym, or at the crag.

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

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

Using crimp holds or performing no hang training incorrectly can lead to injury. Please refer to our article Info For Young Climbers.

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.