Product material: plastic Color: blue, yellow, green, red Size: 75*5mm Package content: 48 * reflector bicycle spokes 1.Reflective warning safety: The reflective spokes of the bicycle can reflect the direct light from a distance back to the original place. Whether day or night, you can get good optical effects through back reflection. It is easy to find them when driving a vehicle and act as a reflection. 2.Visible in the dark: The rearview mirror of the bicycle is highly reflective, and the visibility in the dark is the same as in the day. This makes the driver's figure brighter in the dark and more obvious in the dark, which improves the safety of the driver. 3.Easy installation: The bicycle spoke reflector is easy to install, without the use of adhesives, special fasteners and other auxiliary tools. It will not affect the performance of the bicycle wheel, nor will it remind the cyclist of its existence. 4.Wide range of applications: The reflector is suitable for conventional round standard spokes of mobile auxiliary tools such as mountain bikes, racing cars, racing cars, wheelchairs, strollers, etc.