Size: 3-1/4" Width X 6-1/4" Length X 1-5/8" HeightMaterial: Plastic Power Source: 4 AA Batteries (Not Included)Delivers An Electric Shock To Kill Mice Quickly And SafelySafe To Use Around Children And Pets, Unit Deactivates When Door Is OpenedVery Efficient, Kills 100+ Mice For The Cost Of 4 Batteries