Sharp Kitchen Premium Three Stage Knife Sharpener, Stainless Steel and Black ERGONOMIC sharpening wheel design makes it easy to grip and convenient to sharpen back and forth DURABLE stainless steel construction with a firm, non-slip base to ensure kitchen safety THREE STAGE knife sharpening system for blade restoration and maintenance MODERN design makes this an excellent addition to any kitchen and an exceptional, yet functional gift for someone special in your life DIAMOND and ceramic grinding slots used to sharpen and maintain knife edge