The Pentel Quicker Clicker Automatic Pencil PENPD347TC features a unique side-action lead advance button that allows for lead advancement without altering your writing position. This mechanical pencil is designed with a latex-free rubber grip for comfort, a large stationary eraser, and a fixed sleeve for stability. It is refillable with Pentel Super Hi-Polymer Lead and PDE-1 large refill eraser, ensuring long-lasting use.