Rat Zapper Ultra Infrared Perfect for larger rats (and mice too!), ongoing rodent infestations and commercial applications Bait with ordinary pet food No blood, no gore, no mess, and no poisons to endanger your pets or the environment Flashing kill light tells you when you have a catch; simply tip the Rat Zapper and let the dead rodent slide out Approximately 30 kills with one set of 4 alkaline "D" cell batteries (not included)