The Staedtler Lumocolor Glasochrom Pencil is a quality waterproof green coloured pencil. It can be used on almost all surfaces including glass, metal, wood, leather, stone, plastic and paper. Its colour is intensive and light fast, with a non-corrosive colour pigment. For opaque marking even on dark & transparent surfaces. This green pencil is sold individually. Wood from certified, sustainably managed forests.