Item Description: If you are just learning how to hone your own straight razors or be already experienced in honing straight razors, you will find these stones are easy to work with and give fantastic results. The Stones work well for everything from restoring an edge or repairing chips to simply touching up the edge. Thousands of people have learned to hone with these stones and continue to enjoy the results they give. They are one of the easiest stones to learn to hone on and should provide you with years of productive use. Specification: Material: White Corundum Dimension: 180mm x 60mm x 15mm（L*W*T） Particle size : 10000# Package Includes: 1 x Whetstone INSTRUCTIONS : 1. Soak the stone in the water for 5 minutes and then put it on a steady surface such as a table or desk. 2. Do not rinse away all the slurry on the stone surface since it's helpful to make the knives sharper. MAINTENANCE After every use,clean the surface of the whetstone using soft brush and allow it to dry in a well entitleted area. To clean the knife,use a wet sponge or neutral detergent being thoughtful of the sharpened edge. Always dry your knife before you store it away. CAUTION: Do not use whetstone to sharpen serrated blades or scissors. To avoid knife damage,sharpen it by employing light pressure. For best results,the face of your stone should be flat. After extended use the stone may require grinding to maintain a flat surface. .