Twelve-piece lumograph drawing/writing pencil set includes highest quality graphite pencils in precisely differentiated degrees. Whether writing, sketching or drawing, they glide smoothly over paper. Lead is super bonded to west coast cedar over entire length of pencils to minimize breakage. Leads are easy to sharpen. Lines reproduce well and easily erase. Tin contains 12 medium degrees: 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H and 4H.