Product Details ：[accurate Measurement] The Grip Strength Training Device Is Equipped With A High-precision Stress Gauge Sensor. Measuring Capacity: 198 Lb/90 Kg; Weight: 0.2 Lb/0.1 Kg. The Compact Grip Training Device Can Store Up To 8 User Files For Easy Tracking Of Progress. [smart Counting And Resistance Adjustment] This Grip Training Device Adds A Counting Function, Which Can Record Up To 1999 Exercises. Each Time You Use It, You Can Easily Adjust The Resistance Of 11-190 Pounds (about 5-89.8 Kg) According To Your Needs To Maximize Your Exercise Needs. [sports Equipment And Injury Rehabilitation] The Grip Enhancer Forearm Grip Is Very Suitable For Improving The Strength And Speed Of The Wrist, Fingers And Forearm. It Is Not Only A Good Choice For Rock Climbers, Tennis Players, Athletes And Musicians, It Enhances The Flexibility Of Fingers And Wrists, But Also Very Suitable For People Who Suffer From Arthritis, Tendinitis, Carpal Tunnel Fractures And Recovery From Tendon Surgery. [easy To Use And Save Data]-the Grip