The four-sided box grater features Microplane's new ultra coarse blade and two of the most popular grating blades (fine/zester and medium ribbon), as well as the slicer. All these options in one unit! With grating surfaces made of surgical grade stainless steel, it has a plastic body, non-skid feet, and an ergonomic soft-grip handle. The box grater is dishwasher safe. We recommend that, when not in use, the box grater be stored with the protective cover.