Product Description These diamond stones come with protective leather sheaths and are essential for sharpening knives and hooks. Designed with grooves specifically for fish hooks, the surface remains perfectly true and flat throughout its lifetime. No oil or water is required during use, making maintenance simple. Fine grit ensures a precise honing for all your blades. From the Manufacturer EZE-LAP Diamond Products has been a leader and innovator in diamond sharpening tools since the early seventies. Our patented bonding process and cutting-edge technology enable us to produce top-quality sharpening products at an affordable price, unmatched in the industry. EZE-LAP's unique blend of industrial diamonds and patented bonding method provides you with the toughest, most durable, and longest-lasting sharpening surface available. With this exceptional design, you can effortlessly sharpen carbide, tool steel, titanium, ceramics, and most super hard materials, including new advanced materials used by leading knife manufacturers. EZE-LAP offers the widest array of diamond sharpening tools on the market, allowing you to select the perfect sharpener to suit your specific needs. Whether for kitchen, shop, or field use, our products cater to outdoor enthusiasts, DIYers, machine tool operators, woodworkers, culinary professionals, and many other markets. Proudly made in the USA, EZE-LAP’s sharpening tools stand for quality, durability, and unparalleled performance.