Orenz is Pentel's one-click, mechanical pencil, pre-loaded with extremely strong super hi-polymer B lead. It never needs sharpening and produces a clear dark line without fail. It writes without you actually seeing the lead. Details:Fits 0.5 mm leadExtremely strong super hi-polymer B leadFor fine linesBreak resistant leadSliding sleeve prevents lead from breakingThe lead should not extend past the metal tipRefill lead (sold separately) Ideal for sketching and drawing