Features： 1、Electronic Hand Dynamometer: User parameters, measurement and exercise mode settings, set user information and target grip value before use, and automatically grab the maximum strength value. 2、LED Display: The electronic hand dynamometer has LED display that is easy to read and shows your results in clear detail. 3、Accurate Measurement: Using sophisticated production technology, accurate measurement, simple operation, easy to use. 4、Adjustable Grip Distance: Adjustable grip distance, to meet the use of different people, relieve muscle fatigue, exercise palm strength. 5、Uses: Can be used for entertainment between classes, exam exercise, daily fitness, rehabilitation training, office games, fitness for the elderly, etc. Specification： Item Type: Electronic Hand Dynamometer Material: ABS Built in Battery: Li Ion Battery 300mah Scope of Application: It Can Be Used for Entertainment Between Classes, Pre Exam Exercise, Daily Fitness, Rehabilitation Training, Office Games, Fitness for the Elderly, Etc. Package List： 1 x Electronic Hand Dynamometer 1 x USB Cable 1 x User Manual