Here is a bait station I use. The red and purple lines are the rats path to the bait. The green lines are the partitions in the middle of the bait box on the inside which the rat has to go around to get to the bait. That is why the bait stays inside the bait station. I bought a couple of other bait stations thinking they were like my original one but they weren't and turned out to be disposable. I figured out how to take the top off to replace the bait as needed. They have clear tops instead of the little window above the bait.


