1960's and 70's Asphalt Modified Firestone Tires with Firestone Decals (All Tires Same Size) (set of 4)Recommended Instructions:Be sure to check tire for clearance in the fender wells of the model first. Use sandpaper to lightly roughen the tread. Apply the decals to the face of the tire. The back will have four circles molded into the tires. After the decals have dried, shoot a coat of Dull Cote on the face of the tire and then insert the wheels.