Wrist Hand Grip Strengthener Portable Heavy Duty Steel Finger Grip Device 100lb Description: [Premium Material]Hand grip strengthener is made from steel, featuring high flexibility and durability, strong enough for heavy duty exercise. [Ergonomic Grip Design]The powerful hand gripper is ergonomic and easy to use. Ergonomic lines on the surface ensure the of training. [Portable Pocket Size]Grips strength exerciser with a compact design, you can take this grip strength training with you and exercise anywhere: at home, workplace, or even on travel. [Hand Training]hand gripper is great for finger, wrist andamp forearm training, building up hand strength and increasing hand strength, improving grip, and the flexibility of fingers. [Applicable People]Wrestlers, athletes, musician, muscle builders, and exercise trainers, whether they are beginners or professionals, this grip exerciser is the best choice. Specification: Material: Steel Size Chart: 13.4cmx10.4cm or 5.28inchx4.09inch Package Includes: 1 Hand Grip Strengthener, 2 Sponge Sleeve