With 2.3mm ultra-fine mono erase with extreme pinpoint erase on sharp drawing for precise writing. It is a high class series of pencil "monograph" which realized high quality high precision "writing" and "erasing" Precision microscopic mono eraser Equipped with a 2.3mm diameter extension type mono eraser. You can eraser a part of characters, a line, etc. to pintpoint.
Pen tip of fixed guide pipe Adopted 4mm fixed guide pipe which realizes high visibility
Metal knurling grip Non slip grip which makes it possible to write with stability
Low center of gravity design It is a low center of gravity design of authentic specification which satisfies usual writing as well as drafting use.