These are good for what they are. - Otis Technology Round Cleaning Patches

Once you learn how to set these up for your specific caliber they are very good. I use them to clean every caliber I own,which includes 223, 308, 9mm, 40 cal, and 45 acp. So these kind of are a one size fits all. However, if you don't watch a video on how to set them up your not gonna do it properly. I went nuts the first time trying to set these up for use on my AR15 only looking at the instructions that came with it. I had to do a search online and thru YouTube before I was able to figure it out, but once you see someone do it you will become proficient very quickly. In fact, I prefer setting all my patches up their way now so much that when I ran out of these I took some normal patches that I had and cut little slots in them so I could use those in the same manner.
Pros: Versatile.
Cons: Pricey

This review was written in the old system and had content requirements that are different than reviews written today.