Features 1、Silicone Material: Made of premium silicone, soft, high elasticity, great tensile effect, tasteless, wear proof, not easy to tear or deformation, easy to clean, can be stored and used for a long time. 2、Great Performance: This hand reinforcer set is ideal for improving strength and flexibility in the fingers, palms and wrists. It is also beneficial for recovery from carpal tunnel, tendinitis and tendon surgery. It can help in injury rehabilitation and release from hand strain. 3、Hook and Loop Design: The hook and loop can adjust the tightness according to the thickness of the wrist, promote the blood circulation of the hand, train the function of the hand and increase the range of motion of the joint. 4、Easy to Carry: This hand grip strength trainer is small, stylish and lightweight, and its compact design makes it easy to fit in anyone's pocket or bag. 5、Great Gift: This silicone finger strengthener is the perfect gift for mountaineer, tennis players, guitarists, pianists, drummers and musicians, etc. Item Type: Hand Grip Strength Trainer Material: Silicone, alloy, cloth Weight: Approx. 105g/3.7oz Size: Adult free size Strength: 60 pounds Package List 1 x Hand Grip Strength Trainer 5 x Spare Finger Sleeve