This 8? Crimson knife honing steel rod is designed to keep all your straight edge knives performing between sharpening. The rod is chromed for durability and magnetized to hold the small knife burrs that can come off the blade when honing. This honing rod is designed to straighten the knife burrs you get on your knife edges from regular use. It lines up the blade burrs for optimal performance without cutting steel. Designed to keep your knives performing well in between professional sharpening.