specification: Item Type: Finger Flexion Extension Trainer_x000D_Material: Silica Gel, Alloy_x000D_Product Size: Approx. 35.5 x 5.5cm / 14 x 2.2in Features: 1Expand the Scope: Silicone fingertips are soft, reliable, firm, elastic, flexible and not easy to break or fade.Universal for both left and right hands, spare finger sleeves and silicone tape can maximize the range of motion 2Many Functions: Training can promote hand circulation, enhance hand muscle strength, practice hand function, improve hand flexibility and joint range of motion 3Ingenious Design: The ingenious design can be used for the left hand and right hand, or separate and practice the flexibility and endurance of each finger separately 4Scope of Use: The hand strengthening and relieving wristband is suitable for people of different ages. It is suitable for rock climbing, tennis, baseball, guitar, piano, drummer, etc. To help people exercise hand muscles, relieve hand discomfort and fatigue and enhance finger flexibility 5Function: It can exercise fingers and wrists. It is used for hand rehabilitation training caused by hand injury and wrist injury. And adult hand muscle strength fitness exercise PackageList: 1 x_x000D__x000D_Finger Flexion Extension Trainer 5 xSpare Finger Cuff