Illadel Steel Tip Metal Ball Point Marker with 2oz. of permanent, oil-based Chrome-Aluminum paint. The head of this steel tip has a 4mm steel ball point that will mark any wet, dry, dirty, rusty, greasy, rough or smooth surface with ease. It lays down a nice medium-sized line of chrome that blings like crazy when the light hits it. The oil-based permanent paint will last for years on the street if left untouched. It's a fadeproof, weatherproof, heavy-duty mix of solvents & pigments. This specific Chrome-Aluminum mix will also bond with metal/rusty metal over time. This stuff looks great and it extremely permanent. The marker body is squeezable so you can get some drips out of it if you know how to use these bad boys. The steel tips are great for mail boxes, stop signs & poles, subway platform signs, dumpsters, and any other outdoor surface that you come across. Easily refillable and long-lasting.