Poster marker will write on plastic, wood, glass, rubber, paper, steel, acetate, vinyl, and metal or painted surfaces. Ideal for when you want a long-lasting but not necessarily permanent outdoor marker. Highly opaque pigment ink is water-based, yet waterproof and fadeproof. On nonporous surfaces, poster marker can be easily removed with household cleaning fluids, yet markings, made on absorbent materials such as cardboard, will remain strong and vibrant even after extended exposure to the elements. Xylene-free and acid-free. Offers a durable plastic barrel and 12.0mm chisel nib. Nonrefillable.