Product information Wood-cased water-soluble hexagonal pencil in 6 colours For opaque marking on almost all surfaces even on dark or transparent ones, e.g. paper, plastic, metal, glass, wood, leather and stone Can be wiped off many smooth surfaces No bleeding through paper Ideal tool for users in industry and trade Wood from PEFC-certified, sustainably managed forests Sharpener recommendation: Mars double-hole sharpener 510 25 or tub sharpener 512 002 for ideal sharpening results