Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Will this work on serrated blades?
Document: Great product for any application don't think it's made for serrated blades but i used it on them any ways lol don't expect it to work the same on non serrated blades again though obviously sharpened some knives almost back to factory sharpness be carful when pushing hard the plastic piece holding the sharpeners in place may come un lipped i just put a dab of super glue in there after the first time it happened and never had another issue
I really only noticed a big difference on my big butcher knife that I use to cut watermelon and cantaloupe. Wow, that knife is like new now! It says on the product description that you can't use it on serrated blades so I knew that going in. Unfortunately, my paring knives don't seem any sharper and forget using it on scissors. That didn't work at all. Still I only paid about $7 for this thing, and it saved me from having to buy a new (and much more expensive) butcher knife.
I sharpened all the knives in the kitchen including straight blades as well as serrated knives and it worked great. Very small foot print.
If you have serrated blades then this is no good. For the rest of the blades a couple swipes and the edge is ready. The rubber base helps it stay put and its small enough to store anywhere
This compact (not too small though) is a product that beats the value of its purchase price. It works extremely well in sharpening knoes, serrated blades and scissors as well. Quite a handy tool to neatly stow away in your kitchen drawer. I would definitely recommend this sharpener to anyone.
The coarse sharpener is very aggressive. Three or four firm strokes are sufficient to sharpen a knife well, even very hard Wusthof blades. The ceramic (fine) sharpener is good for finishing and touch-up. It's extraordinarily fast. I used it gently on a coarsely serrated bread knife, and that worked, too. I'm impressed by the performance of this tool, especially at this price.
I had bought a knife for two dollars, and it could barely cut through paper. This thing worked to sharpen it up, and now I can cut plastic with it. I wouldn't recommend using this on a serrated edge, although I haven't tried it, the blades are not flexible. Still, it definitely worked well for what I bought it for. Also, the grip was a lot easier to hold than it looks. Although the sharpener is small, it is very easy to handle.
Do BE CAREFUL as you get near the tip of the knife-I accidentally nicked my counter because I was pressing down too hard at the end. I caulk that up to bad technique as opposed to a design flaw. Works on most every kind of knife except serrated blades. If you're a real knife guru I'm sure you could do better with a nice set of stones but for the average user I think this sharpener will suffice.
This isn't the very best sharpener I've ever used, but it's perfect for keeping your kitchen knives sharp enough to tackle day-to-day kitchen jobs. The rubber bottom makes it safe and easy to use, the small size means that it won't take up too much precious counter space if you leave it next to your knife block, and if you leave it out next to your knife block you're more likely to use it frequently. Great price, and as long as it lasts I'd certainly recommend it to anyone. I think the only real drawback is that it can't be used on serrated blades.
It came much smaller than I thought it would be so it is quite light,  But it seems to work well on non serrated knifes. Less so with Serrated cutters.
Answer: These type of sharpeners will destroy serrated blades. Don't use if on them.