TUMBLER The Original Rolling Knife Sharpener™ - Knife Sharpening Made Easy - Rolling Knife Sharpener Tool for Kitchen Knives - Knife Sharpener Kit Offers 15 & 20 Degree Sharpening

This thing works great. It may take a bit more time than you might think the first time you sharpen your knives with it, but it is super easy to keep them sharp once you get that edge. It can be a bit tricky on fillet knives or paring knives due to the magnet thickness, but it's overall a fantastic tool. Super easy to use and it takes the guesswork out of sharpening angles.

Oh my, where to start! This is so relaxing to use this, and oh boy, does it put a good edge on the knives we have. We have a decent set of knives, plus a cheap set we bought many years ago. I used this on the cheap set and what difference! Amazing, and easy. I need to do them more often, but wow, what a difference. I bought the strop to go with it

This was a Christmas gift for my husband and he immediately used it to sharpen our dull knives. It was impressive to say the least. It sharpened the knives quickly, easily, and it is light weight and portable so he can take it to my elderly dad's house to sharpen his knives. Great product.

This is just completely incredible. With the Tumblr, there is no way you can miss a sharpening. This is so user friendly! I am amazed, simply amazed! In five minutes, I managed the create an incredibly sharp, scary sharp to be honest, on a chef knife! Before, I used sharpening stones but it was really mich more work. Now, with the Tumblr, I go from a pretty dull edge to a perfect one. When you use it, you know this will last long. The product is Top Quality! 110% satisfied! I cannot stop showing this wonder to everyone I know that come to visit!

I have bought a few different knife sharpeners and used them all, each one of a different type. There's really many ways to go for sharpening your knife. Each providing a step up in sharpness, but also a step up in complexity to use (both in skill and time it takes to sharpen). -Honing rod (not exactly a sharpener but does make it "sharper" in a way) -Sharpeners with a v ceramic in which you pull -Rolling sharpeners -Belt sharpeners -Rod based sharpeners -Whetstones I think the nice middle ground for most people is either rolling sharpeners or belt sharpeners. I bought this really because sharpening with this is really simple, it takes barely any longer than the ceramic sharpeners and does a considerably better job. I think though, there are some big limitations... -For one, the magnet (that holds the knife) works great for wide knifes, such as chefs knifes... but is too tall to work for smaller knifes, such as utility knifes. >>Having a second smaller magnet as well would solve this. -There is only 1 single grit and a honing side. This works well for general maintenance, but if you have a heavily damaged knife it will take longer to sharpen and because there's no fine grit, you won't get that razor edge. >>Having a course and fine grit and a strop would be better... Or offering sharpeners with varying grits. These are the limitations of most rolling sharpeners out there... the next step up of using a belt sander, though can be found in compact sizes, it a little less "friendly" to use and wouldn't recommend it to everyone. Specially if you have a knife with a nice finish and worry about scuffing it.