Pentel’s #1 selling Mechanical Pencil. Superior construction meets the rigorous demands of professionals and students alike. The 4-mm fixed sleeve makes it ideal for use with rulers and templates. Each mechanical pencil is pre-loaded with Pentel super Hi-Polymer HB lead; never needs sharpening, lead is super strong and produces a clear dark line. Pencil has a metal cap to cover the white eraser.Open stock pencil without packagingRefillable with 0.5mm lead and latex-free Z2-1N eraserEngineered with balance and precision for accounting, drafting, and general writing4-mm fixed sleeve for template and ruler workAvailable in 0. 5mm and 0. 9mm lead sizes and backed by Pentel industry-leading limited lifetime warranty.