Rat Zapper RZU001-4 Ultra Rat Trap (4 Pack) Ideal for catching and killing larger rats, mice Easy to use insert batteries, bait, turn it on, place, and relax Hands-free no touch, no view disposal reduces the yuck factor Safe and sanitary while always wise to use caution around kids and pets, there is no blood, mess, chemicals, or poisons One set of 4 D batteries equals to 60 kills