Used for hand dysfunction, small hand function impairment, finger strength and grip strength . Features: The grip ball enhancer has low strength and good;durable, hand strength toolelasticity, which is convenient for the s grip and finger movement. The ball will not fall down, which is suitable for . Soft Press and high elasticity. It is equipped with six finger holes, easy to wear, and can adjust the tightness. Product Category: Grip Grip strength: about 5kg Specifications: Four-finger massage ball Name: Sub-finger thorn grip ball Applicable scene: , health massage classification: grip ball according to fitness effect: hand function recovery colour:blue Material: size:12x10cm Package Contents: 1 x Finger Exerciser Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.