1. Exercise : Mainly overall rehabilitation and muscle training of and hands.2. Ergonomic Design: This finger stretcher is ergonomically designed so with proper adjustment, it can a comfortable fit for everyone.3. Hand Yoga Accessory: Hand yoga is primarily used for the rehabilitation and exercise of the and the entire hand. Fingertip accessories have different tension levels.4. Practical: The more you open your , the more silicone tension is applied. This product only needs to be replaced and can be used with both hands.Name: Hand Grip AccessoriesColour:blackMaterial:Silica type:60 Package Contents:5 x Silicone finger socket accessoriesOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.