The OEM Pentel Quicker Clicker Automatic Pencil PENPD349TB features a unique side-action lead advance button that allows for lead advancement without changing your writing position. This mechanical pencil is designed with a latex-free rubber grip, a large stationary eraser, a stationary tip, and a fixed sleeve for enhanced usability. It is refillable with Pentel Super Hi-Polymer Lead and PDE-1 large refill eraser, making it a practical choice for both students and professionals.