Feature:1. Grip Strengthener: Enhance your hand strength and grip with grip strength trainer, designed to exercise your forearm muscles and strengthen finger power.2. Adjustable Levels: Hand gripper has a adjustable force range of 22 to 220.5 lbs, you can adjustable your workout intensity and exercise at your own pace.3. Portable Training Anytime: Hand gripper allows you to train your grip strength on the go, suitable for beginners and advanced users, providing convenient hand strength training.4. Versatile: Great for musicians, athletes, helps improve performance, also a great hand strength exercise for people who are recovering from arthritis, myositis, carpal tunnel and tendon surgery.5. Comfortable and Premium: Hand gripper has an ergonomically designed handle, making your workout more comfortable and safe, made of sturdy materials to ensure long term durability.Specification:Item Type: Adjustable Grip StrengthenerMaterial: ABSBuilt in Battery: 65mAH One Cell BatteryAdjustable Level: Approx. 10 - 100 kg / 22 - 220.5 lbApplication: for Musicians, Athletes, and Hand Injury Recovery.Package List:1 x Adjustable Grip Strengthener