TileRite Chinagraph Marker. Paper wrapped wax marker for use on tiles, glass, china, acetate and other hogh gloss surfaces. Use for marking dimensions, or drilling/cutting positions on tiles. Water resistant (lines will not bleed) ensuting that your markings remain in place for more accurate cuts. No sharpening required, simply pull downwards on cotton cord to slice through paper wrapping, and peel back to reveal more of the wax tip. Pack includes: 1 x Red / 1 x Black.