Wrist Rehabilitation Developer Hand grip

1. Product name: Metal Spring Hand Grip Strengthener Ball Rehabilitation Grip Exerciser
2. Material: chrome-plated carbon steel spring

1) Strong, durable, unbreakable, not easily damaged
2) With steel spring to exercise your grip strength
4.Usage: finger force and grip exercise
5. Size: (approx.) length: 9 cm/3.54 in, waist diameter: 5 cm/1.97 in, minimum diameter: 2 cm/0.79 in

Packing list:
1* Spring Grip Strengthener