The clock face is waterproof and impact resistant, very durable in using The clock face is waterproof and impact resistant, very durable in using With luminous dial, it can help you see the time clearly even at night Mounts on the straight section of the handlebars with a stainless steel screw Split ring bracket for easy installation on the straight section of the handlebars Made of aluminum alloy material with galvanizing surface, corrosion resistant and shiny Quantity:1Pc Note: Manual measurement, there may be 1-2cm/1-3g error, which is not a quality problem. Due to different screen displays, there may be a color difference between the real object and the picture, and the main picture shall prevail .