I've had one of theses paint brush cleaners before but lost it when I moved house. Bought this set when we started to decorate the new house,I think I spent more on white spirit and brush cleaner than I did for the house,or it felt like I did.When I found this set was still for sale I had to get it. It cleans any brush up to 3-4 inches and most common rollers.I didn't have the roller cleaner last time I WISH I HAD. If you are a DIYer this set will be invaluable to you. I can clean any brush or roller in less than 5 minutes and I mean clean. The brush or roller, if you follow the very simple instructions, will be spotless and dry to the touch. Brilliant. The only downside is finding a container deep enough to use. I just put a bin liner in the kitchen bin with some news paper and job done(don't tell the other half). Buy one you won't regret it.