Adjustable Grip Distance: The handle is adjustable, providing a comfortable grip for people with various hand sizes. The ability to adjust the grip distance caters to a wide range of users, from beginners to advanced, enhancing the user experience. Convenient Dual Power Options: This hand grip strength training device supports both AAA batteries and USB charging, offering flexible power solutions. The built-in lithium battery ensures you always have the power you need, making it convenient to use anywhere. (Batteries not included) Ideal for Multiple Users: This digital hand dynamometer is designed for multiple users, with adjustable resistance to accommodate various strength levels. The grip strength recording and measurement function makes it perfect for rehabilitation and strength training for all users. Easy-to-Read LCD Display: The large, high-resolution LCD screen on this hand grip tester clearly displays grip strength measurements, making it easy to read for everyone, including the elderly. This allows for accurate monitoring of progress and performance, enhancing training and rehabilitation routines. Robust Construction for Diverse Needs: Designed to withstand various grip strengths, this hand exerciser meter meets the needs of a wide range of users. From athletes to those undergoing rehabilitation, it provides reliable performance, enabling effective strength assessment and training. 【Important Notes】 ■ Please refrain from purchasing if you are looking for perfection like a Japanese shop, or if you are overly sensitive, as this is an overseas product. ■ Although it is a new, unused item, there may be scratches or scuffs. ■ While we have included actual images, specifications may change depending on the lot. ■ By the time of purchase, we will proceed with the transaction assuming that you have fully confirmed the description.