[Premium Quality Paint Pen] These markers are made of opaque ink that is chemically stable, lightfast, and quick-drying. Oil-based ink is odorless, non-toxic, xylene-free, acid-free, and environmentally friendly. Each marker is filled with 5 ml of premium Japanese ink. The ink dries within a minute, ensuring long-lasting results. [Versatile] These permanent paint pens work on multiple surfaces, including rock, ceramic, wood, leather, plastic, fabric, canvas, stone, glass, metal, and chalkboard. [Appropriate Line Thickness] Durable fine round nib allows smooth and precise application. Ideal for arts and crafts, DIY projects, scrapbooking, journaling, planning, coloring books, and office use. [Individual Packaging] Each paint marker is sealed in heat-shrink film to prevent leakage during shipping or storage. Package includes five colors: Black, White, Red, Yellow, and Blue. What can these paint pens be used for? These oil-based pens are waterproof, permanent, and quick-drying. They write on glass, paper, cardboard, fabric, rubber, plastic, canvas, leather, metal, brass, automotive surfaces, wood, stone, and tires — nearly all surfaces. How to use the paint pens: 1) Shake the pen well. 2) Hold the pen with the tip upright and press the tip gently with your thumb to release air. 3) Turn the pen upside down and press the tip to allow ink to flow into the nib. 4) Begin writing or drawing on any surface. To clean, use mineral spirits or turpentine. : Free of xylene and toluene. Oil-based paint formula adheres to multiple surfaces. Tip size: approximately 2.0 mm – 2.8 mm. Colors: Black, White, Red, Yellow, Blue.