Derwent-Sketching Pencil 4 Degree Blister Pack. Sketching pencils could not be easier to use; just three simple degrees HB, 2B and 4B with a wide strip. Perfect for a loose sketch or sharpening to a fine point to add detail! This package contains 4B, 2B, HB and watersoluble Sketching 8B. Conforms to ASTM D4236. Imported.