These traps work really well. It was the only way we got rid of a very bad mole infestation. Our son is a wildlife biologist and he recommended these traps over others on the market. He also recommended using gloves when handling the traps and when putting these in as the moles can smell the human sent and they will tunnel right around them if they do. The other thing he showed us was how to install them that is much easier than the directions. We simply step on the tunnel where we will put this and just rock the trap back and forth to straddle the tunnel until it's down in the ground. That way you don't dig anything up and you don't have to worry about light getting. If light gets in, the mole may not go there to repair the tunnel since they hate light so much. But doing it this way, when the mole comes along to repair the tunnel since it was smashed down, it meets it's demise. I recommend getting several of these traps so that you can put some in several places. It's not always easy to tell what is the main tunnel and what is a feeder tunnel. If you get this on a feeder tunnel you might not get the mole. Nice thing about these, if you bring them in out of the weather when you are done with them, they will last indefinitely.