Model 40805 Quantity 1 Color Red Material Special retroreflective material Functions Special retroreflective material UV coating high temperature resistant waterproof sunscreen Best Use Suitable for 18~38cm wheel Other Features Reflective wheel stripe aims to increase side visibility for bicycles to keep their riders safe; They are designed specifically to fit modern bicycle wheels and easy to install by being applied to the surface of the rim between the braking surface and the spokes converting them into full reflectors and staying out of the way of the brakes; They are made out of a special retroreflective material that reflects light back to the source even if it isn't straight on this means the light from the headlights of a car at that dark intersection will bounce back towards the car and the driver. Packing List 1 x Wheel stripe sticker