The Pentel GraphGear 500 is a technical drafting pencil designed for precision in template work and technical drawings. It features a 4mm fixed sleeve that aids in detailed work, while the metallic-mesh grip provides enhanced control. This drafting pencil includes a top click mechanism, a stationary eraser, and a tip that can be refilled with Pentel Super Hi-Polymer Lead and Z21 refill eraser. Ideal for professionals and students alike.