The Alegacy Foodservice Products 5821 is a combination sharpening stone designed for precision and durability. Measuring 8" x 2" x 1", this rectangular stone features a high-quality aluminum oxide surface that effectively sharpens and hones a variety of knife blades. Its dual-sided design allows for versatile sharpening options, ensuring your knives maintain optimal performance. Ideal for both professional chefs and home cooks, this sharpening stone enhances cutting efficiency and prolongs the life of your kitchen tools.