3D Car Tire Letters Stickers Decoration for SPORTS-Stripes 4 Tires DIY Styling Automobile. Before installation, clean the surface of the tire, keep it clean and free of dust, then use sandpaper to grind the tire to ensure that the adhesive surface is flat to ensure that the glue can be pasted to the largest area. Please do not install it on the concave word of the original tire, because that Part of the unevenness will affect the installation effect!