1. Material: PP polypropylene + breathable composite cloth 2. Applicable parts: hands 3. Ergonomic shape design, comfortable to wear 4. Adjustable design, not easy to fall off 5. High-strength adhesive tape, stable and not easy to fall off 6. Humanized strap design for better fixation 7. Size: Standard model is about 31.5 cm; upgraded model is about 50 cm 8. Weight: about 150 grams for the standard model; about 200 grams for the upgraded model