Used for hand dysfunction, small hand function impairment, finger strength and grip strength training.Features: The grip ball enhancer has low strength and good;durable, hand strength training toolelasticity, which is convenient for the user's grip and finger movement.The ball will not fall down, which is very suitable for training.Soft Press and high elasticity.It is equipped with six finger holes, easy to wear, and can adjust the tightness.Product Category: GripGrip strength: about 5kgSpecifications: Four-finger massage spiky ballName: Sub-finger thorn grip ballApplicable scene: fitness equipment, health massage classification: grip ballChoose according to fitness effect: hand function recoverycolour:blueMaterial:TPRsize:12x10cmPackage Contents:5 x Finger ExerciserOnly the above package content, other products are not included.Note: Light reflection 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.