Safety & Personality：The reflective stickers are made from PVC material, make your car more discoverable by others in the evening. The shape of the stars makes your car or others more individual. Size: 2x2 inchs(5x5 cm) Colour: Blue, green, silver, red, yellow Wide applications: mainly used in Cars, Trucks, Motorcycles, Boats, Bikes, Trailers, Campers, Balance cars, Helmets, Fence, Bags, Outdoor Security Protection and so on. Self Adhesive: Water resistant, so rain will not ruin the sticker. Strong adhesive glue to help withstand the wind and wet, easy to use. Note: This product is made of PVC hard reflective material and can only be used on flat surfaces. It is not recommended for surfaces.