30-45 mm Adjustable ----- The rotation signal support is suitable for a variety of models, and the diameter can be fully adjusted, suitable for 30-45 mm front fork scooter, size: approx.8 * 3 cm / 3.1 * 1.2in, suitable for most motorcycles, suitable for scooters, but before placing the order, check carefully if the size is appropriate. Steel plate ------- The assembly support of the assembly of the Address lamp is made of high quality steel sheet, high resistance, high hardness, strong and resistant to wear, antica, antioxidant and has the best duration. Professional design ------ The assembly support of the signal of the signal of the signal of the signal of the signal of the signal Giro is specially designed for rotation signs, resistant and simple support can help you fix the light source for better lighting.