The knife sharpening rod is made of carbon steel and plated with premium nickel-chrome, the hardness is up to HRC62 (the general product is HRC56), suitable for more kinds of knives, and easy to process honing. The steel rod fine surface fineness is 40% higher than normal knife sharpener, which prevents blade damage when sharpening and prolonging tool life. Our knife honing rod with strong magnetism to prevent the metal particles generated when the sharpening process from splashing around. Honing process 2 to 3 times before using the knife, then wiping the sharpening rod with a non-woven cloth. Quick, safety and easy to use. The hardness is HRC 62±1 The honing steel made of carbon steel and plated with nickel-chome through our proprietary chromium plating process, rust-proof. Ergonomic handle that fits all hands, safety for your hands Fit most knives. Not suitable for serrated blade and ceramic knives Quick, safe, and easy to use When a honing steel no longer returns a knife's edge to sharpness, you can try a sharpening steel, such as a ceramic steel or a diamond-coated steel, which removes some metal from the blade, thereby sharpening it. sharpening rod How To Use Your Honing Steel Place the plastic tip of the honing steel on a solid surface. Apply lightly downward pressure to avoid slipping during use. Place heel of your blade at the top of the honing steel at about 20 degree angle. honing the knife from heel to tip and repeat 2 - 3 times, then turn to the other side of the knife until blade is sharp. Clean the knife with water and dry it. Wipe the honing steel with non-woven cloth. Note: 1, Keep stable when honing. 2, The angle between the honing rod and the knife should not be too large, keep at 20 degree angle. Knife Sharpener Dimension We have 2 size honing steel to select, this size: Total length: 44cm/17.32inch 40cm/15.74 inch Sharpener Length: 12 Inches/30.5cm/ 10 inch / 25.5cm Handle Length: 5.31 Inches/13.5 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.