Come to OfficeSupplies101 for all of your art supplies needs. Grease Pencils, also known as Wax pencils, China Pencils, Marker Pencils or China Marker Pencils, are wax writing tools made of colored hardened wax that are used for marking on hard, glossy non-porous surfaces such as porcelain, glass, polished stone, plastic, ceramics, photos, and more. It is often used as a construction or handyman's marking tool as it rarely scratches the surface it is used on. A Grease Pencil may be used to mark a wet surface. Wax Pencils are also used as a favorite among some traditional artists. Make OfficeSupplies101 your one-stop-shop for all of your art supplies needs.