Ain Stein's innovative formula uses porous ceramic cell structure while providing the same darkness and smoothness.
Features twist open top. 40 refill lead per tube. Lead never needs sharpening and produces a clear, dark line Ideal for all general writing applications such as notes, letters, etc Each 60mm piece of lead is equivalent to a woodcase pencil Part of Pentel's exclusive Recycology™ line of recycled products. Over 50% of the materials used to create these products were recycled materials. Ideal for highly detailed lettering or pencil work.