Cutex Sewing Supplies White China Markers Peel-Off Grease Pencil (12 Count) Pack of 12, High quality White China Markers. China Markers, also know as "Grease Pencils," leave opaque markings without skipping on all types of shiny surfaces including glazed pottery, glass, plastic, metal, rubber as well as porous surfaces such as fabric, wood, and paper. Marks are water-resistant and colorfast. Can be easily removed from non-porous finishes. Using the pull string easily exposes the paper wrapped core.