I have a Lyman tumbler. I bought it from Gander Mountain years ago. It is one of the bigger models (can't remember the model number right off hand), but I use it for cleaning the brass shells when I reload for target shooting, and then I got into pinball and now it has a dual purpose. The tumbler is nice, you can get a bowl with a removable plug in the side that let's the media drain out so you don't have to dig around to find your parts when done, or you can just use the plastic screen pan (looks like a pan they use to mine gold) like I do. I have had the tumbler for about 15 years and never had a problem with it. It will polish 500 rounds of brass for my 45 without a problem. The only downside is that it makes a lot of noise if you are using it in the same room you are working in, but if you use it in the garage then you don't hear a thing.