The adjustable handle was suitable for users of different ages, a good fit for both big hands and small hands. User-Friendly and Convenient - The device features a simple-to-read display and a lightweight design, with adjustable handles to fit various hand sizes, making it a more convenient option than traditional manual grip strength testers. Durable Construction - Made from quality materials, the hand dynamometer is both sturdy and designed to last, perfect for individuals looking to monitor their grip strength improvements through various exercises. Versatile Use - Essential for athletes in sports like rock climbing, wrestling, and gymnastics, this grip strength tester also serves as an important health indicator, widely applicable in sports training, at home, and in clinical settings. This Grip Strength Tester can be widely used in sports training, sports, family and clinical use. [Ergonomic Design]- The non-slip grip design is ergonomically designed so you can focus all your attention on your training.The grip can be adjusted to provide a customized fit for each user, just turn the adjustment knob to find your ideal fit. Colour:As Shown Material:ABS Package Contents: 2x grip strength trainer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.