Features: With fine workmanship and exquisites appearance. Firmly instills, not easy to falloff. Reflective light shape designs, make it look more attractive and unique. It well concealed , and you can instills it anywhere you need. For cycling enthusiasts who prioritize safety and want a discreets yet effective way to monitors their bicycles location. Whether you're navigating city streets at night or participating in outdoor biking adventure, this reflector mount enhances visibilities and provide peacing of mind. Specifications: Component:ABS Diameter:Approx.50mm/1.97inch Applicable Model: Suitable for: Scooter, Bicycles Package Includes: 1Set Concealed Shell note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.