1.Made of chronic elastic PU material, the grip ball strengthener is soft to and highly elastic. 2.The grip ball strengthener features small intensity and good elasticity, which is convenient for the user to have grip and finger exercise. 3.The ball won't fall off and is good for training. 4.It is equipped with six finger holes for easy wear and allows you to adjust the tightness. 5.Suitable for small hand function damage, finger strength and grip strength training. Specifications: New Item type: Finger Grip Ball Material: Elastic PU + adhesive tape Color: blue Size: (approx.) Diameter: 7 cm/ 2.76 in Package Contents:1pc* Finger Grip Strengthener Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.