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

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

STRENGTHS MUSCLES: This wrist exerciser is designed to improve strength, power and speed in the wrists, fingers and forearms, which is ideal for athletes, musicians, rock climbers, golfers and tennis player
ADJUSTABLE DESIGN: Perform regular and reverse wrist curls with the adjustable stabilizer pad
QUALITY & COMFORT: This wrist strengthener is made with heavy duty carbon steel springs and thick 10mm foam stabilizer pad (in comparison to 6mm) for extra comfort and cushion