This is a KATO ready-to-run N gauge model train set, the E233 series 3000 series Tokaido Line Ueno-Tokyo Line basic set (4 cars). The leading couplers of cars 1 and 15 use dummy couplers, while the leading couplers of cars 10 and 11 use KATO close-coupled couplers (without hooks), and include electric couplers.
