Our Professional-Grade Knife Sharpening Whetstone is a 2-in-1 Whetstone Kit that features both 1000-Grit and 6000-Grit sides that allow you to quickly and easily sharpen and hone your chef's knives. Simple to use with no mess and no oil required; all you need is water. The Whetstone Kit comes with a non-slip bamboo case that holds the whetstone and keeps it securely in place while you sharpen your knives. It also includes an angle guide which helps you maintain the correct sharpening angle. The 2-in-1 whetstone contains both a coarser side (1000 Grit) and ultra-fine side (6000 Grit) to allow you to easily switch between sharpening and honing your knives. 1000-Grit (Blue Side): The blue side of the whetstone is coarser and is used for sharpening your knives. 6000-Grit (White Side): The white side of the whetstone is very fine and is used for honing your knives.