Product Information: \nSuitable for professional use, the Combination Waterstone with 8000 grit is a professional quality sharpening stone that is perfect for ensuring accuracy and precision for your knives. The sturdy plastic base has non-slip feet to ensure the stone is steady and safe sharpening. This whetstone is ideal for daily use in the kitchen, guaranteeing a sharper knife edge for better food preparation and precision cuisine. This grit combo is the great for maintaining the edge on your knife and polishing a fine edge. \n \nAll whetstones need to be submerged into water for about 5 minutes before sharpening to ensure there is enough moisture to create a paste between the knife and the stone. It is also recommended to use a few drops of dish washing liquid to enhance lubrication.