What are they and do they work, the answer would be a resounding YES!
Just like snap traps they work really well and it almost seems like the mice were there to help each other out. I remember the old days when they said once you caught a mouse on a snap trap there was a smell that attracted other mice and that proves out today as well. Whether its a phermone or just a smell of a mouse or rodent it does seems to attract some attention. I also think that it masks some of the human smell. So don’t clean those traps, just keep on trapping those nasty little rodents..
