Features： 1、SILICONE BAND: The silicone band maximizes the range of motion in motion using a hook and loop fasteners adjuster, regardless of wrist circumference. 2、PROMOTE CIRCULATION: Through training can promote hand circulation, enhance hand muscle strength, training hand function, improve hand flexibility, enhance joint range of motion. 3、FLEXIBILITY AND ENDURANCE: Clever design can be used for left and right hands, as well as separate each finger for flexibility and endurance. 4、SOFT AND RELIABLE: Silicone material finger cover, soft and reliable, firm and strong, good elasticity, good flexibility, not easy to break or fade, suitable for most people. 5、GENERAL USE: Spare finger cover for both left and right hand. It can be used for different parts of the hand treatment, relieve wrist and finger fatigue. Specification： Item Type: Finger extension trainer Material: Silica gel, alloy Function: Can exercise fingers, wrist power. Used for hand injury, wrist injury caused by hand rehabilitation training. And adult hand strength exercises. Scope of Use: The wrist band is suitable for people of different ages, suitable for rock climbing, tennis, baseball, guitar, piano, drummer, etc. To help people exercise hand muscles, relieve the discomfort and fatigue of hand and enhance finger flexibility. Package List： 1 x Finger Trainer 5 x Spare Finger Sleeve