Safe MaterialEach tire paint marker is made of qualified oil-based ink, waterproof and moisture resistant, strong coverage, non-fading, and safe for children and pets. Thoughtful DesignFeatures an design for a tight seal, even ink output, and smooth writing without stopping or leaking. 3mm pen nib is designed for detail work, providing you with precise, easy-to-use control. Fade Resistant and WaterproofTire paint markers are fast-drying, fade-resistant, and waterproof, making this paint marker perfect for artists, students, teens and adults. Wide FunctionsThis car paint pen is very practical. You can use it to write on cafe boards, bar, and bistro menus, chalkboard labels, car windows, car tires, house windows, light panels, mirrors, etc. Convenient to UseShake the pen up and down about 10 to 40 times before every time use. Paint on the scratch area until the scratch is covered.