The Scaffolders Pack is the perfect markers kit for scaffolders and other craftsmen working with metal, wood, brick and stone. This pack allows you to write on metal, concrete, brick, stone, wood, grout, styrene foam, plastic and much more. Additionally, the Low Corrosion marker offers you a waterproof, fadeproof and total halogen free marker. The kit contains 1 Exterior Marker black, 1 Concrete Marker black, 1 Builders Marker black and 1 Low Corrosion Marker white.