Our tire paint pen contains styrene copolymer and C12-15 alcohols. It can add vibrant color to your car. Its usage is very simple: 1. Shake the pen up and down for more than ten seconds, then open the cap, and press the pen vertically on paper until the liquid flows out. 2. After the paint penetrates to the tip, carefully apply it to the letters or patterns on the tire that you want to decorate. When painting, use multiple layers, with 3-5 minutes between each layer. 3. The effect will show after 5 minutes, giving the car tire a different feel. The tire's original color remains flat and not obvious.