Features 1、HIGH ACCURACY: Our hand dynamometer is equipped with a high accuracy strain gauge sensor to accurately measure your grip strength. Measuring up to 396lbs/180kg, it provides you with highly accurate results. 2、ERGONOMIC DESIGN: The hand grip strength trainer features a non slip grip that is ergonomically designed to provide a comfortable experience and allow you to concentrate on your training. 3、ADJUSTABLE GRIP: The hand grip strength tester has an adjustable grip, just turn the knob to find the ideal fit, suitable for a wide range of people, providing a customized wearing experience for each user. 4、MULTIPLE APPLICATIONS: The digital hand dynamometer is designed for a wide range of applications, from athletic training and daily exercise to gym and clinical use. 5、LCD SCREEN DISPLAY: The hand grip strengthener features a digital LCD display that is easy to read and shows your grip strength in detail. Multiple data can be stored and displayed for easy comparison. Item Type: Hand Grip Strength Trainer Material: ABS Battery Type: Dry Battery (Included) Battery Capacity: 800mAh Package List 1 x Hand Grip Strength Trainer 1 x USB Charging Cable 1 x Instruction Manual 2 x Dry Batteries