Ideal trap for catching and killing large rats. Also works well for mice. Easy to use, insert batteries, add bait, turn on, place where needed. No touch, no view disposal. Easy to clean, no mess, chemicals, or poisons. Can be reused indefinitely. 2-plate design delivers a shock that lasts 2 minutes. Features a red light indicator that flashes repeatedly to alert of a kill. Requires (4) D batteries, not included. Each set of batteries kills 60 rats. Includes battery replacement indicator light. safe and sanitary, use caution around children and pets.