The unique Staedtler Lumocolor Omnigraph Crayon contains non-corrosive colour pigments and can be used to mark wood, paper, metal, plastic, glass, leather and stone. The crayon provides superb colour brilliancy and is waterproof for vibrant signs, artwork, crafts and more. Each crayon is 113mm in length and has a hexagonal barrel designed for comfort. This pack contains 12 black crayons.High quality crayon for marking wood, paper, metal, plastic, glass, leather and stoneCan also be used to mark wet woodNon-corrosive colour pigmentsSuperb colour brilliancy for signs, artwork and craftsWon`t bleed through paperHexagonal barrel for comfortColour: BlackPack of 12