Sports Accessories
Hand Exerciser,Auto-Start Gyroscopic Wrist Exercise Gyro Ball,Hand Exerciser with Counter & Light,for Strengthen Arms, Fingers, Wrist Bones and Muscles (Black 3PCS)
Efficient hand strength training: The built-in precision gyroscope mechanism provides smooth and adaptive resistance, effectively enhancing the strength of the hands, wrists and forearms. It is an ideal choice for rock climbers, athletes and grip...
https://www.bizrate.co.uk/sportsaccessories/hand-exerciser-auto-start-gyroscopic-wrist-exercise-oid40095406065.html