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

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

METAL HYBRID – Encompassing a solid, heavyweight zinc rotor inside a smoked-black, military-grade polycarbonate shell, the Powerball Hybrid Autostart Classic successfully combines the classic appearance a standard Powerball with all the power of a Metal Series model.
AUTOSTART – Fitted with an autostart mechanism for quick activation and fuss-free spinning every time. Simply wind back the rotor, release and spin to use the Powerball Gyroscope Hybrid Autostart No strings needed!
LCD SPEED METER – Hybrid Pro includes a 4-mode battery-free speed counter for precisely monitoring your strength progress, endurance gains and highest spin speeds.