Sharpie Pro Chisel Tip Marker marks on wet and oily surfaces and most surfaces for a versatile, permanent marking tool. Ideal for marking corrugate, wood, metal, foil, stone, plastic, leather, and more. The durable tip and metal barrel withstand heavy use. Certified AP nontoxic ink is fade-resistant, water-resistant and xylene-free. Cap snaps on easily and features a clip to attach to notebooks, pockets and more.