Comes with 4 colours; fluorescent yellow, fluorescent pink, fluorescent orange, fluorescent red. Water based Non-Toxic paint is permanent, and bleed proof. Combines the accuracy of a line with the quality of paint. Can be used on tracing paper, photo paper, card stock, card board, clay, stone, rocks, cement, wood, metal, fabrics, plastics, glass, leather, and even more surfaces. 2.5mm medium bullet polyester tip creates a bold line and can be replaced when worn out. Quality tool for artists, hobbyists, interior designers, and children to produce their masterpieces.