Grease Pencil

High Quality Content by WIKIPEDIA articles! The grease pencil, a wax writing tool also known as a wax pencil, china marker, or, in the United Kingdom, chinagraph pencil, is made of colored hardened wax and is useful for marking on hard, glossy non-porous surfaces such as porcelain, glass, polished stone, plastic, ceramics and other glazed, lacquered or polished surfaces, as well as the glossy paper which is used for photographic printing, and formerly for marking edits on analog audio tape. It ...