Diamond Steel Knife Sharpener, Amado 3-Stage Sharpening System Including Diamond Rod Slot, Tungsten Steel Blade Slot and Ceramic Rod slot, Best Cutlery and Knife Accessories 3-stage sharpening system. Diamond steel knife sharpener with diamond rod slot for ceramic knives / Tungsten steel blade slot for coarse sharpening / Ceramic rod for fine honing to eliminate burrs on the knife and polish it. Safe and Durable. Ergonomic handle has been designed to fit your hand, promising you a good firm grip. Non-slip rubber feet would hold the diamond ceramic knife sharpener in place when in use. Simply run your dull steel knife about 3 or 4 times through the "coarse" slot by pulling the knife towards you, and twice through the "fine" slot to remove burrs, and enjoy a perfectly sharpened knife in seconds with this professional knives sharpener! Lifetime Guarantee - We are so sure that you will love this diamond ceramic knife sharpener, any quality problem, we guarantee you a lifetime warranty.