[Reflective spokes]: Size (length x width: 75 x 5 mm), of 72 pieces, suitable for all conventional round spokes. Note that these are reflective strips. That reflect when the light shines. [Reflective warning safety] : Especially in the dark season (autumn & winter), the reflector bicycle can help to be perceived noticeably easier in traffic. Visible to all road users from a distance of at least 400 meters. [Improved 360 reflection] : The spoke reflectors offer 360 degree visibility and thus a high level of traffic safety. [Wide range of applications] : The reflector is suitable for conventional circular standard spokes of mobile auxiliary tools such as mountain bikes , Racing cars , Racing cars , Wheelchairs and prams. colour: green Material: ABS Package Contents: 72 x Spoke reflectors Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.