PICA546/24 Universal marking tool by Pica, suitable on bright and dark surfaces. -Black half: thick, high quality universal graphite lead 2B -White half: thick, high quality universal coloured white lead -For marking on almost all surfaces, like metal, glass, plastic, tiles, ceramic, laminate etc -Rich marking lines- even on glossy or wet surfaces -marking are easy to wipe clean with a damp cloth -Sharpened on both sides