iMagitek Adjustable Hand Grip Strengthener, Resistance Range 10 to 50 Kg Best Hand Exerciser Non-slip Gripper for Athletes, Sports Lovers, Pianists This hand griper can help increases grip strength for sports like - rock climbing, tennis, bodybuilding, golf, ball games etc. And also very helpful for increasing fingers and hands strength for musicians like bass guitar, acoustic guitar, violin, cello and piano players. It is an ideal tool for recovering from a broken wrist and tendon surgery. Adjustable hand grips where you can adjust the strength tension from 10kgs to 40kgs.An excellent training tool for strengthening the hands,wrist and forearm. One size fits all - Designed to fit small to large hand sizes.Perfect for men and women, seniors and teens. Non-slip handles covered with soft, comfortable and durable rubber for frequent and comfy usage.