Metal, wood, plastic, glass, stone, ceramic, cardboard, and almost any surface. It is a low-solvent, water-based permanent marker that is especially recommended for permanent marking of infusion and blood bags, or other surfaces where it is important that the ink does not react with the surface material. Does not contain xylene or toluene. The ink dries quickly and is waterproof, lightfast, and smudge-proof. The rounded tip has a line width of 1.5-3 mm. Thanks to the practical clip on the cap, the marker does not roll away and can be carried in your pocket.