Sets the standard for lumber crayons. These extruded lumber crayons last up to 10 times longer than ordinary molded wax crayons. They're fade-proof, water-proof and smear-proof. Wont melt in direct sunlight and works on wet green or dry lumber, metal or concrete. Each crayon is individually UPC coded. Hexagonal shape fits lumber crayon holders. Colors: Carbon Black Assortment: N/A Crayon Size: 4 1/2 x 1/2 in Size Group: Large.