Features: Make of ABS and reflectives coating film which durability and not easily to fade.<br> During terrible weather, it will reflect under light irradiation to improve Cycling safety and reduce the risk of accidents.(It could not bright itself, need external light!)<br> Waterproofs and light weights, allow it to used in humid weather and will not increase the burden on the bikes.<br> Suitable for most kind of bicycles, such as Mountain Bikes/Foldings Bikes/Kids Bikes/Road Bikes.<br> Easily installation: Just push the spoke reflectors on the spoke and gradually pressings it down.<br> Specifications: Component: ABS and reflectives coating film<br> Length: about 75mm/2.95inch<br> Package Includes: 72Pcs Cycling Reflectors<br> note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.