 One, the flies love that smell, and you are not going to like that. You're not going to like it. Move it out. So how big is it? Size of two hands, something like that? You know, we have different sizes and different uses. So we have a disposable line, and that comes in two sizes. One is just your, I would say, average homeowner. It's the one I use. You can put one out in your backyard if you have, say, a dog.