The Black 0.7mm 800 Mechanical Pencil by Rotring has a full metal barrel and features a unique Twist and Click retractable mechanism that moves the entire sleeve and lead. This professional tool precisely advances the lead while the fixed lead guidance sleeve prevents breakage while giving you a full view of the page. The barrel has a hexagonal shape to prevent rolling on flat surfaces while the non-slip metal knurled grip provides support. Includes a built-in eraser under the push-button cap. Refillable. Loaded with high-polymer HB leads.