1. Material: aluminum alloy 2. Application: motorcycles, scooters, electric vehicles, etc. 3. Features: aluminum alloy material, sturdy and durable, smooth surface, comfortable touch, easy to install and use 4. Installation aperture: about 10mm 5. Bracket aperture: 8/6mm 6. Size: about 8x3.5 cm 7. Weight: about 57 grams