I got this because I have 3 kids running around ages 3,4 and 6. I did not want to spray toxic chemicals around them so after retreating the cats i set these traps out hoping for the best. Let me say that we had a bad flea issue and in less than a week it went from is that a flea to waking up walking to the bathroom and having 20+ fleas jump on your legs. So I ordered the traps and in a few days they got worse i was so happy when I got them. In just 1 night i caught dozens in less than a week we noticed 1 or 2 so we kept them on for a month it has been 2 months since we used the traps and we have not had a single flea in the house since.