Our white tire paint pens contain acrylic resin emulsion, titanium dioxide. It can be applied to DIY specially designed trim, racing lines and car tires, and the multi-functional tool can be applied to a variety of surfaces to meet the diverse creation, durable, unmarked and not easy to fade, suitable for outdoor and long-term use projects that beautify the appearance of the car. Its use is simple: Place the cap over the pen, shake the bar, and press the tip down vertically several times until the paint begins to seep out and spread onto the carrier. Remember to cover the pen tightly after each use to prevent the ink from evaporating. And the formula is safe, smooth writing, easy to control, suitable for fine work and large area coverage.