Review on Advanced Kitchen Knife Sharpener, Ulwae 3-Stage Knife Sharpener for Efficient Restoration of Non-Serrated Knife Blades, Perfect for Kitchen, Camping, Hiking, and Daily Household Use by Erica Hosey

This sharpener REALLY works! I've revived all my kitchen knives (only works for non-serrated knives) and it was so easy. It takes a minute to sharpen a knife as they say in their simple and clear instructions. There are three slots with different blade/handle material: 1 Rough Diamond - 2 Medium Steel - 3 Fine Ceramic. Simply slide the knife through each slot 1 through 3 a few times, and voila! You can split your hair! In addition, it is ergonomic, has a non-slip bottom and is very light (take it with you wherever you need to sharpen a knife, e.g. at work or when traveling). This little thing is now the most useful gadget in my kitchen! Many Thanks.