This fits your .
Make sure this fits by entering your model number. Strength boost: Strengthen your arms, wrists and fingers to improve coordination and circulation Permanent power: The wrist ball is a purely manual powered mechanical device that does not use batteries or any power supply Functions: enhance finger grip strength, wrist endurance, finger ligament toughness, to a certain degree of relief when working intensity is high How it works: Using the principles of auger and celestial mechanics, using the laws of centrifugal force and inertia to generate powerful forces when rotating, the arm movement is in an active state, and the user controls the rhythm and intensity of movement through the wrist rotation How to use: Both hands control the ball level, with the thumb alternately push the ball center of the direction of the arrow, stop when the resistance is large, with one hand control the ball and rotate clockwise or counterclockwise, feel the centrifugal force generated by the ball center, and then begin to accelerate
Outdoor hand strength trainer
Wrist Power Gyro Ball Wrist Strengthener and Forearm Exerciser for Stronger Arm Fingers Wrist Bones and Muscle with LED Lights - B61IO1Z65
