[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 one minute, helping your creations last longer. [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, gift card marking, journaling, calendars, planners, 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 5 colors: Black, White, Red, Yellow, and Blue. What can these paint pens be used for? They are oil-based pens, meaning they are waterproof, permanent, and quick-drying. These paint pens write on glass, paper, cardboard, fabric, rubber, plastic, canvas, leather, metal, brass, automotive surfaces, wood, stone, and more. 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 tip-down and press gently to prime the tip with ink. 4) Begin writing on your desired surface. To clean, use mineral spirits or turpentine. : Free of xylene and toluene. Oil-based paint formula adheres to a wide variety of surfaces. Tip size: approximately 2.0 mm – 2.8 mm. Colors: Black, White, Red, Yellow, Blue.