14 IN 1 KNIFE SHARPENERS: Coarse slot is used for straightening and repairing damaged blades, medium slot to sharpen the knives, fine slot for clean polishing, serrated slot for sharpening serrated blades. 2ERGONOMIC HANDLE: This kitchen gadgets works for both right or left handed person, thec allows you to restore your cooking knives in a matter of seconds! 3EASY TO USE: Simply place the blade in each of the slots and gently pull the knife through a few times for fast, effective sharpening. Do not push the knife back and forth. 4MULTI USES: With our professional knife sharpener kit you can sharpen and hone various knives be it any kitchen knife set, chef knife sharpener, paring knives, serrated knife sharpener, filet knife, pocket knives, hunting knives, old knives, new knives and more. 5DURABLE MATERIAL: Professional knife sharpener kit is crafted from premium ABS plastic, it's strong, durable and designed to last a life time.