Sticks refills fit good in the sticky trap. Easy to use and easy to install into the trap. The bugs stick to this thing like crazy! I didn't think I would catch as much as I did. Even when I stored it in my garage, there were quite a few bugs stuck to the sticky trap even without the light on. I would highly recommend this trap for fleas, and also a variety of other little creepy crawlies. I caught plenty of spiders, gnats, fleas, and other bugs as well.