Great for catching a variety of insects and archnids!
I have a roach, fly, spider, and millipede problem in my house(live in the woods), and these traps have been excellent in trapping them. I put a few down and within a week they had caught multiple roaches, spiders, and flies in each trap. It will take a little trial and error to find out where the best place to put them are, so if one trap doesn't catch anything after a few days try moving it to a different wall or corner and see how they do there.
I will definitely be buying more of these once I run out