Bruryan Hand Gripper Exerciser-Wrist Strength Training Exercise Machine Forearm Grip Hand Gripper Exerciser

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.