Dual-sided whetstone: 1000 grit on one side and 6000 grit on the reverse; stone uses water (vs. oil) for sharpening; cleans easily with water Knife-sharpening angle guide: helps maintain a correct angle and consistent pressure when sharpening a blade Versatile: sharpens a wide range of knives and other cutting tools, including kitchen knives, scissors, pocket knives, hunting knives and more Non-slip design: silicone base holds stone inside and non-slip bamboo base keeps unit securely in place for added safety while in use