The Mercer Culinary M15951 is a versatile sharpening stone designed for both novice and experienced chefs. This combination stone features a 400 grit side for coarse sharpening and a 1000 grit side for fine honing, ensuring your knives maintain a razor-sharp edge. Measuring 2-1/2" x 7", it provides ample surface area for effective sharpening. The included silicone base holder offers stability and safety during use, preventing slips and enhancing control. Ideal for maintaining kitchen knives, this sharpening stone is an essential tool for any culinary enthusiast.