1DUAL GRID DESIGN: Dual grit knife sharpener features a dual grid design that provides a rough side for quick cutting and shaping and a middle side for final cuts and finished edges. 2EASY TO GRIP: Round knife sharpening stone is easy to hold and the contoured shape provides safe, simple tool sharing. Compact and lightweight for easy storage and portability. 3RANGE OF APPLICATION: Round knife sharpener is perfect for cutting lawn mower blades, machetes, axes, hatchet blades, trimmers and shovels, and a variety of other cutting and dicing tools. 4ABRASION RESISTANT: Round double sided knife sharpener has excellent abrasion resistance, making it easy to sharpen, simple and convenient to use. 5ROBUST AND DURABLE: Double sided knife sharpening stone is made of sandstone for durability and consistent use, which helps provide optimal performance.