Non-porous Ceylon graphite cores are dense and durable. The core is "Carbo-Welded" to withstand four times the normal point pressure. The specially treated cedar wood casings sharpen easily. Pencils are pre-sharpened.
Assorted Hardness: 8B, 6B, 4B, 2B, HB, 2H, 4H, 6H, 8H