Hold an entire running model train layout in your hand! A locomotive or train car is less than an inch long! Trains are driven by a drive belt inside hollow channel track, pulled along by a motor/gearbox. We have several standard train layouts ranging from 4"x4" circle to large 14"x24" multi-track, trains and levels. Our web page www.tiny-trains.net has video links to youtube video. We also make custom trains and layouts.