Yosoo 10000 Kitchen Knife Grit Sharpener Sharpening Water Stone Dual Whetstone 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 Material: white corundum Particle size : 10000# Shipping Weight: 0.7pounds