LitterMaid LM500 Automated Litter Box Automatically rakes waste into sealable container 10 minutes after use Plugs into wall socket or operates with eight D-cell batteries (not included) Four reusable/disposable waster containers included Detachable litter tray for convenient cleaning 23-1/2 inches long, 16-1/2 inches wide, 8-1/2 inches high