Paragon Special FX Cap & Solid Rubber Tire Traction Compound has been formulated for solid rubber and capped rubber tires. It can also be used on foam tires but typically only when the track surface is very low grip (otherwise you will be doing "traction rolls"). Special FX cleans, conditions and penetrates into the rubber to maximize traction off the line and increase car stability throughout the race. It's low odor too! Package includes one four ounce can with a dauber lid.