This is a vintage toy item from the 1960's. It is a power pack for battery operated Kiddypliance toys made by Bachmann. The battery pack and runs on 2 "D" batteries (not included). When the appliance is plugged into the battery pack, it operates. One or two Kiddypliance items can be plugged into the same battery pack at the same time. This is a "New" old stock item. Clean inside and out.