With the Victorinox 40997 Sharpening System you get all the different grit types you need in one convenient package. Equipped with Crystolon coarse and medium stones (great for quick work), and a fine India stone (produces a smooth, long-lasting edge) this system takes your blades through the entire sharpening process. From well-worn to reformed, reformed to polished down, and polished down to highly honed, with a quick turn of the spit your blades can be good as new in no time. One pint of mineral oil included for added protection and quality performance. Pick up this Sharpening System today and keep your blades sharper, longer!