Product name: Grip Strength Tester Product size: 19.5*12.5*3cm / 7.67*4.92*1.18inch Product color: As shown in the image Product material: PP Product features: 1. Designed for home, sports, and clinical use. Automatic or manual mode saves and displays maximum grip strength value, indicating weak, normal, or strong power levels. Easy to recall readings for comparison. 2. Accurate measurement using a high-precision strain sensor. 3. LCD digital display provides clear, high-definition readings. Numbers are visible clearly day or night. 4. Clearly marked buttons suitable for men, women, and children. Compact size with broad application. 5. When powered on and reset to zero, press and hold for 3 to 5 seconds to activate the counting function, which starts with a flashing display. To exit, press and hold the same button for 3 to 5 seconds. Precautions: 1. Colors may vary slightly due to differences in computer monitor displays. 2. If you have difficulty selecting the correct size, feel free to for guidance. Recommendations are for reference only. Shipment includes: 1 x Grip Strength Tester