3-Step knife sharpening system: the art of knife sharpening, the 1st diamond sharpening rod repairs and straightens damaged blades before the 2Nd slot sharpens to restore its V-shape, lastly, the 3rd slot fine tunes for a clean polish. Easy to use: fit right and left-handed, the ergonomic handle allows you to restore your cooking knives in a matter of seconds, simply place the blade in each of the slots and gently pull the knife through a few times for fast, effective sharpening. Premium quality: with our professional knife sharpener kit, you don't have to be a chef to cook like one, crafted from solid ABS plastic, its strong, durable and designed to last lifetime, made with high quality materials, knives will work like new. LIGHTSMAX New Upgraded Lightsmax Kitchen Knife Sharpener- 3-stage Knife Sharpening Tool Helps Repair, Restore and Polish Blades | KS