Uni-ball\'s PX-20 Paint Marker is permanent on most surfaces and writes on paper, metal, glass, plastic, wood, fabric and stone. It also contains Heat resistant, water proof and fade proof ink. Contains no sulphur and no silicon. . Extra fine 0.8mm line. 2.2mm to 2.8mm line, bullet tip. Available in Gold or Silver. Permanent paint markers. Long lasting performance. Writes on most surfaces including wood, metal, plastic, glass and fabric. Heat resistant, water proof and fade proof ink