ROYAL BRUSH-Royal & Langnickel Essentials Sketching Pencils. Essentials Sketching Pencils come in varying grades of soft to hard graphite and are slim with a hexagonal barrel for firmer grip. This package contains twelve Sketching Pencils (5H, 4H, 3H, 2H, H, HB, B, 2B, 3B, 4B, 5B, 6B). Conforms to ASTM D4236. Imported.