High Sensitivity - Equipped with a high-precision measuring sensor, it automatically captures and displays maximum grip strength. Capacity range: 90 kg / 200 lbs. Adjustable Handle - Designed to fit both large and small hands. Adjust the knob to your hand size, allowing you to test comfortably and measure maximum strength. Set different ranges for different people - Easy setup with 19 individual users - Can set number, gender, age - and save and recall test results for each user. Can create great interest among friends, family, and colleagues who want to compete to show their strength. Results displayed intuitively - Each test is rated as \"Weak\", \"Normal\", or \"Strong\" based on age and gender data entered for each user. You can improve your strength according to the result. Portable and suitable for training anywhere - Suitable for people who climb, play golf, tennis, and people participating in hand muscle rehabilitation training. Additionally, you can train and relax in the office. Note: The data are all manual measurements, please allow an error of 1-3 cm; due to the difference in light and display, there may be a certain color difference, please refer to the actual item received.