Empire 87BLK Durable Blue Wooden Carpenter Pencil Medium Lead 10 in.

The core is stronger than in other pencils

The pencil is robust to survive in a construction environment

The non-round core allows thick or thin lines to be drawn by rotating the pencil

Carpenter pencils are typically manually sharpened with a knife, since sharpeners for round pencils do not work

Carpenter pencil has a unique shape that prevents rolling in your fingers