[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 grip training device can up to 8 files for easy tracking of . [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 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 suitable for improving the strength and speed of the wrist, and forearm. It is not only a good choice for rock climbers, tennis players, athletes and musicians, it enhances the flexibility of and wrists, also suitable for people who suffer from arthritis, tendinitis, carpal fractures and from tendon surgery. [Easy to use and save data]-The grip strength trainer has a LCD screen, which clearly displays all measurement data on the same screen. The displayed size includes code, age, gender, grip value (lbs or kilograms), and grip status. The maximum grip value is displayed and the weak, normal or strong power levels can be saved and recalled for comparison. [Best Gift]-Grip Strength Enhancer- suitable for sports training, sports, family and clinical use. It is suitable as a gift/ for birthdays, New Year's Day, 's Day, Mother's Day, Thanksgiving Day and Christmas. Colour: white Material: plastic Package Contents: 1 * Grip Strength Trainer 1 * USB cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.