Ergonomic and comfortable, Compact and lightweight, strengthen your forearm and wrist force anytime, anywhere.ABS material has high strength, corrosion resistance, high-temperature resistance, lightweight, wear-resistance, and durability, etc., which increases the service life of the product.Giant screen display, 42mm diameter, solid pointer display clear.By training the reaction ability and strength between the , the are more flexible, and the are more skillful and enhance the strength of the .Comfortable grip, Four fit, can make better of strength.size:165 x 75mmMaterial:plasticcolour:Blue+blackPackage Contents:1 x Hand Grip DynamometerOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.