1. Material: aluminum alloy. 2. The bracket heightening design (37.5mm) extends the performance of the product. 3. Distribute 2 washers, applicable from 21mm to 31.8mm. 4. Support for Bike / Motorcycle / Electric Vehicle, etc. 5. Thick silicone pad to enhance cushioning and reduce vibration generated by Riding. 6. No button design, easy to operate. 7. Paw width: 55-100mm (adjustable). 8. Support thickness: 10mm.