Double-sided whetstone, 1000 grit on one side and 6000 on the other side; Stone for use with water (not oil) for sharpening; Cleans easily with water Knife sharpening angle guide: helps you maintain the correct angle and apply even pressure when sharpening a blade Versatile: Sharpens many types of knives and other cutting tools: kitchen knives, scissors, pocket knives, hunting knives, etc. Non-slip design: Silicone layer to hold the stone and non-slip bamboo base to keep everything in place and ensure increased safety when using