Noticeable difference in number of flies getting into house when installed. With chickens living next door, bag fills every month during summer and is definitely worth the price.

I keep these on hand all year. They work incredibly well. I keep one on the front porch and one on the back porch. I change them out every couple of weeks, depending on fly activity.

If you're wondering whether it will work, the answer is yes—ABSOLUTELY YES! I didn't think we had many flies outside, and thank goodness I didn't bet on it because I would have been sooo wrong.

We use these when we go camping. We attach to the back end of the camper and it attracts flys away from where we are gathering. It does have a smell to it . But it works! It is shocking how many fly it attracts.

It works but at a big cost. It smells like roadkill, and I mean in a BAD way. Very foul; much worse than the fly problem. So, unless you can hang the bag outdoors far enough away from your nose, I would recommend a different solution.

Very effective fly trap. I hung it over my two outdoor garbage cans and it fills up within about three weeks. It smells terrible but worth it with how many flies it catches !

These things work amazingly. We had to change it more like every two weeks because it filled up so fast. Highly recommend if you're having an issue with flies.

They worked great! The last time I bought three and I can't find them. I know there's somewhere so far I hadn't needed them again, but they do really work.

great product they work and last a long time. If you have heavy rain coming wait to put it out or put it where the rain can't get in it because it dilutes it and makes it not work as well.

We had a fly problem. Had no idea how bad it really was, until this….Never seen so many dead flies in my life. We can relax in the backyard now without being harrassed