Spring Grip Hand Training Adjustable Hand Strength Arm Muscle Wrist Strength Fitness Finger Trainer

Product information:
Applicable scenarios: fitness equipment, health massage, fitness and body shaping
Color: sports black bag laminating film Paper Box [A-line electronic count spring grip], sports black bag OPP bag [A-line electronic count spring grip], olive green bag laminating film Paper Box [A-line electronic count spring grip]], olive green plastic OPP bag [A-line electronic count spring grip]]
Specification: Regular
Material: ABS
Applicable object: general