Upgrade Heavy-duty Professional High Carbon Flat Knife Round Sharpener Rod, Kitchen Knife Sharpeners for Chef Knives [Upgraded Heavy-duty Extra-wide Style Honing Steel]: We use an advanced milling from Germany, which can produce a 3200 grits extra-wide knife honer that is rare in the market; The fine & uniform grain can help you properly maintain & correct the blade, rather than damage the blade; [Excellent High Hardness Carbon Alloy Steel]: High hardness alloy carbon steel endows the sharpening rod with unparalleled hardness, HRC67, which greatly prolongs the service life of the sharpening rod; Most importantly, only a high hardness sharpening rod can effectively correct a high hardness blade; [Surface Sandblasting Process]: We have additional sandblasting on the rod, which greatly enhances the friction of the sharpening rod, and the 12 inches flat rod has a longer effective distance & area than the 10 inches round rod, which will help you correct your blade more effectively; [Magnetized Tip]: As you can see in our pictures, we have added strong magnets to the tip of the sharpening steel; Only a really strong magnetic force can stop the metal particles produced from scattering into the air when honing the knife; [Quality & Gift Packing]: Every our product has undergone strict quality inspections to ensure that every customer can receive quality product as shown in the video; It's definitely an ideal gift for your family and friends;