XCBW Supernova Models Gyroscopes, Wrist Trainer Gyro Ball, Rehabilitation and Strengthening, Wrist, Grip, Forearm, Arms…

Fitness devices: Unlike traditional gyroscopic hand exercise balls, auto start technology, no batteries and rope required, so you will never worry about losing the rope
Compact design: small and portable, super flexible and can be taken anywhere – perfect for short training on the go, it remains efficient, safe and quiet during training.
Operating principle: thanks to a concentrated and dosed movement of the l in the hand, the rotor can be “taken on tours”: the higher the speed, the heavier the hand trainer is due to the resulting forces

THE #1 BRAND WORLDWIDE – Powerball features a military-grade plastic shell with a hardened, drop-resistant, stainless-steel rotor axle for 100% vibration-free spinning up to 16,000rpm
CORD ACTIVATION – 250Hz Powerball comes with two starting cords for quick and easy activation every time. Take this pocket-sized fitness gadget with you on the go and always have a fully comprehensive workout at your fingertips
SPEED IS POWER – Generate up to 15kg of gyroscopic resistance and build muscle along the entire arm, from shoulder to fingertip. The faster you spin, the stronger the resistance. 250Hz Powerball Classic will strengthen and train your grip, wrist and forearm muscles when used for as little as 3-5 minutes each day at moderate to fast spin speeds