The Victorinox Swiss Army 4.3391.1 is a versatile sharpening stone designed for precision honing. This combination stone features both extra fine and coarse grits, allowing for effective sharpening and finishing of blades. Measuring 8 inches in width, 2 inches in depth, and 1 inch in height, it is compact yet sturdy, making it ideal for both home and professional use. Crafted from high-quality India stone, it ensures durability and long-lasting performance. Enhance your knife maintenance routine with this essential honing system, perfect for achieving razor-sharp edges.