Black graphite hexagonal pencil made of biodegradable plastic with a strong lead. Hardness degree: HB. Thanks to a special extrusion technology, the lead is securely fixed in the body. The ideal placement of the lead ensures easy sharpening and economical... use of the pencil. The lead diameter is 2.2 mm: it does not scratch the paper and does not crumble. The medium hardness eraser is made from modern, eco-friendly, and hypoallergenic thermoplastic rubber (TPR) without PVC content.