The Mercer Culinary M15933 is a coarse replacement sharpening stone designed specifically for the M15930 knife sharpener. Made from durable silicone carbide, this stone effectively restores the edge of your knives, ensuring optimal performance. Its coarse grit is ideal for quickly removing material and reshaping dull blades, making it an essential tool for maintaining your kitchen cutlery. Enhance your knife maintenance routine with this reliable and efficient sharpening stone.