1. Grip Enhancer:This set integrates a high-precision grip strength tester with an adjustable resistance grip trainer, comprehensively meeting your needs for measuring and improving grip strength. 2. Precision Measurement & Scientific Training:The grip strength tester is equipped with a high-precision strain gauge sensor to accurately measure your grip strength up to 180Kg. The grip trainer, based on your test results and needs, ensuring your training is both scientific and effective. 3. Profile Tracking & Smart Counting:The tester records up user profiles, displayed include user code, age, gender, grip value and grip status. With them, you can know better your training progress and results. 4. Long-last Use:The grip tester is made of Plastics+Metal, guarantees robust performance and resistance to environmental impact. 5. Comfortable Design: Both handles of the tester and trainer are ergonomically designed and with adjuistable knobs to minimizes discomfort and maximizes performance, ensuring comfortable workouts even during extended exercise. Battery:2xAAA Batteries (Batteries not included) Colour:Black Material:Plastic+Metal Size:19.5x12.9x3.6cm Package Contents: 1 Set * Grip Strength Tester 1 * English instruction manual 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.