car tire paint pens contain disodium EDTA polystyrene copolymer C12-15 alcohol benzoate. It stabilizes the formula prevents paint deterioration and extends shelf life. Excellent adhesion to ensure that the color lasts. Enhance the wear resistance of the coating to prevent tire scratches and wear. Its use is simple: cover the pen shake the pen press the tip down vertically a few times until the paint starts to ooze then apply it to the car tire. Remember to cap the pen after each use to prevent the ink from evaporating. Suitable for car enthusiasts this multi-functional tool can satisfy diverse creation and marking needs to beautify the appearance of ycar.