uxcell a13101800ux0274 Universal Scooter Electric Motorcycle Red Metal Warning Trumper Horn Product Name: Motorcycle Horn; Material: Metal Dimensions: 10 x 8cm/3. 9 x 3. 1 inches(L*D); Color: Red Net Weight: 208g; Package Content: 1 x Motorcycle Horn Mounting Hole Dia: 4mm/0. 16 inches Body Size: 8 x 8cm/3. 1 x 3. 1 inches(L*D)