1. Material: PP 2. Relax muscles and relieve muscle fatigue 3. Fitness training, soothe the meridians 4. Stainless steel thick spring, durable, wear-resistant and not easy to rust 5. Quantity display, turn the bottom button to clear 6. 5-60kg grip strength can be adjusted to meet various needs 7. Weight: 146 grams, 175 grams can be counted 8. Size: 15x10.7x2.5cm, can count 17x11x3cm
