I came on here to order three more traps to cover more of our yard, but i had to write a review first. This trap is amazing! Every year we are infested with flies from the animals near our property. I have had the trap up for two days and i am in shock as to how many it has caught. I'm glad i purchased the gallon size. Still undecided if i am willing to clean it out and reuse, or just throw the jar away. It is already looking pretty bad.