DALO Marker Industrial Steel Ball Tip Paint Marker Features Heavy duty, industrial paint marker that writes on almost any surface Writes through oil and grease without losing legibility or brightness. Makes permanent bright marks on metal, rubber, plastic, glass, concrete, leather, stone, wood, vinyl and more. Marks in extreme weather and temperature conditions, even writes under water and on rusty surfaces. Ergonomically correct marker that enables you to mark at all angles, even upside down. Markers can be used to permanently identify inventory, assemblies, tools, work in progress or finished products while resisting most work related abuses or compounds. Heavy duty aluminum body with large paint capacity. Paint flow is controlled by the pressure bulb at the end of the barrel. Stainless steel ball tips won’t wear out on rough or rusty surfaces. Available in 2 tips sizes – Medium and Broad.