The K-75 marker features vibrant paint that is permanent and opaque, with a chisel tip works well on glass, metal, coated paper and painted surfaces. The marker works best on smooth surfaces, ideal for wall art, murals, graffiti and more.Details:Available in assorted colors22 mL capacity7 mm chisel tipPermanent and opaqueAlcohol-basedConforms to ASTM D-4236