Official AtomGripz Hand Grippers - Premium 303 Stainless Steel Hand Strengthener for Gym, Physical Therapy & Home Workouts

Meet the Atomgripz 303z, a gripper designed for serious strength enthusiasts. Named after the 303 stainless steel used for its knurled handles, the 303z is a heavyweight, tipping the scales at over 1lb each.  

Customisation Options

Built to last a lifetime, these grippers are custom-assembled to your exact specifications.

Handle Spread

Adjusting the handle spread changes the difficulty of closing the gripper-the wider the spread, the harder it is. Narrow spreads are great for grip training without needing to set the gripper with your other hand, unlike standard or wide spreads. If you can handle a standard spread, stepping up to a wide spread is a big challenge.

Handle Mount

The handle mount option lets you adjust how high or low the handles are positioned on the spring. A higher mount makes the gripper harder to close. If you can close a 3-Band with a mid or low mount but struggle with a 4-Band, a high-mounted 3-Band can help you build up to closing a 4-Band with a lower mount.

Carbon Grey Steel Spring vs Mirror Polished Steel Spring

Choosing a Carbon Grey or Mirror Polished spring is purely a matter of aesthetics. The performance is the same for both. All Atomgripz springs start in Carbon Grey, with the Mirror Polished finish achieved through a 20-minute hand-polishing process.