Extremely smooth for drawing, Stones Litho Crayons have very little drag. They're also extremely lightfast. The crayons are available in three sizes. A variety of hardness levels (#1 being the softest and #7 being the hardest) cater to a variety of styles and allow degrees of shading.
Quarter Inch Crayons — They sharpen easily and perform beautifully. Quarter inch crayons are designed to be used with a holder, and are available in a range of hardness from