AnySharp Knife Sharpener 5 "Quick and Easy to Use." Mrs Smith 13 September 2018 I bought this knife sharpener after reading the reviews. I had 5 kitchen knives, of various lengths - I wanted to sharpen. Before I used the sharpener I used each knife to slice a cooking apple (with the skin on) - so I could compare after sharpening. OK - but needed a bit of pressure and not very thin slices. With the sharpened knives - I could easily slice another cooking apple as thinly as crisps. Just pull the knife through the sharpener 4 times (as directed) - it really is that easy. Brilliant piece of kit.