This full body aluminum professional drafting pencil has a fully retractable tip and a balanced body that makes it a joy to write/draw with. It also features a binder clip that can clip onto thick objects. The rubber textured grip gives you a comfortable and secure hold. The Dual action re-tractor advances and retracts pencil tip. This pencil also includes an adjustable built-in lead harness indicator. The 4 mm sleeve design makes it ideal for use with templates. This product is also available in the variations of 0.3 mm, 0.5 mm , 0.7 mm and 0.9 mm.