The grip strength training device is equipped with a stress gauge sensor. Measuring capacity: 198 lb/90 kg; weight: 0.2 lb/0.1 kg. The grip training device can store up to 8 user files for tracking of progress. 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. The grip enhancer forearm grip is suitable for improving the strength and speed of the wrist, and forearm. It is a choice for rock climbers, tennis players, athletes and musicians, it enhances the flexibility of and wrists, and also suitable for people who suffer from arthritis, tendinitis, carpal tunnel fractures and recovery from tendon surgery. The grip strength trainer has a LCD screen, which clearly displays all measurement data on the same screen. The displayed size includes user 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. Grip Strength Enhancer-Suitable for sports training, sports, family and clinical use. It is suitable as a special gift/present 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