The Pentel Quicker Clicker Automatic Pencil PENPD345TC features a unique side-action lead advance button that allows for lead advancement without changing your writing position. Designed with a latex-free rubber grip, it includes a large stationary eraser and a fixed sleeve for consistent performance. This mechanical pencil is refillable with Pentel Super Hi-Polymer Lead and PDE-1 large refill eraser, ensuring long-lasting use.