Rosetta Da Vinci 2 mm Lead Holder Mechanical Pencil, Black Brass barrel with knurled steel grip Clutch mechanism advances the lead A sharpener is built into the end cap For artists, architects, engineers - ideal for illustrations or technical drawing Length: 147 mm (approximately 5-3/4"); Diameter: 8.5 mm (11/32"); Weight: 17 g (0.6 ounces)