Features: High Accuracy Measurement : Accurately measuring grip strength up to 198 , ideal for resistance training and fitness assessments. Modifiable Grip Distance : Hard wearing a handle adjustment button, grasp strength trainer allows users to personalize grasp distance to fit their hand size, ensuring comfortable and effective training for everyone. Backlit LED Display : Day night includes a clear backlit LED screen that displays all measurement data such as power, user code, age, gender, and grip power kilograms, making it simple read and understand. Ergonomic and Transportable Plan : This thin and compact grip strength tester is rechargeable and simple carry, excellent for training everywhere. Flexible Application :Sports fitness, rehabilitation training, and elderly fitness, this tool assists strengthen hand muscle and improve cognitive abilities through regular use. Specifications: Product namemail: Electronic grip tester Substancemail: Engineering polystyrene + electronic factors Battery capacity: 300mah Grip strengthelhellnonbeing: 198 weight / 90 kg Product sizemail: 13.5x5.5x3.5cm Package Includes: Electronic grip testerx1 Charging cablex1 note: Should choose the appropriate intensity, maintain the correct gesture, and perform the movements from slow to fast to avoid overtraining and injury. After use, stretch and relax, and stop immediately if you feel pain or discomfort. In addition, it is necessary to prevent slippage, keep hands dry, and let children use it under adult protect.