LYRA Water Soluble Graphite Crayon Assortment
Use these water-soluble, graphite crayons with a brush and water for monochromatic water color effects. Non-staining and erasable, when dry. Set of 24 includes an assortment of 3 hardnesses: 2B, 6B and 9B. Pre-sharpened, paper-wrapped sticks are 4-1/4" long, 1/2" in diameter.