XIANQI 【Comfortable Handle】 Ergonomic and soft handle of hand grips strengthener covered , which is relatively soft and won't hurt fingers, make the hand grip comfortable to hold. Fit for small and large size of hands, seniors and teenagers 【Duarable Material】 The grip is made of PP engineering material which has good toughness, ensures the durability and does not break. The spring is made of high quality spring steel, which is also durable and will not break 【Adjustable Resistance 】 The adjustable Hand Gripper Exerciser is designed with adjustable resistance, the hand strengthener is effective to develop flexibility of fingers, hands, wrist and forearm by increasing or decreasing the tension of the hand exerciser 【Portable】 Easy to carry and store, the lightweight design of the hand gripper makes it easy to pop into your pocket or bag for use when going out. You can train your forearms, hands, wrists or fingers wherever you are. No matter whether you are at home, gym, office, or taking a walk, watching TV or travelling somewhere 【Multifunctional】 This hand strengthener is ideal for rock climbers, bodybuilders, muscle builders, tennis players, drummers, guitarists, pianists, and massage therapists, improving the flexibility and power of fingers and wrists. It is also helpful in the recovery of injured hands Colour: Black Single size: about 14.5cm*8-15cm*2cm Quantity delivered: 2 pieces