- Productization of series 50 and 40151 configuration trains with long seats
- Reproduction of the interior of the long seats, characterized by their curved backrest design
- Reproduction of the roof of the leading car with two antennas, and the headlights whose shape has been changed from the 0 series
- The "LONG" markings next to the front and side displays, and the wheelchair and stroller marks placed on all cars are printed
- Each car uses a body-mounted close-coupled coupler without a hook for the intermediate coupling section. The front section uses a dummy coupler
- Head/tail lights are lit (white LEDs are used)
- Slotless motor is used to achieve smooth and quiet running
- Front display is already installed with "20M/Semi-express Kotesashi", and replacement front displays include "Express Ikebukuro", "Local Shinkiba", and "Plain"
- Side display is printed in black. Destination display stickers are included
- DCC friendly
- Compatible with interior lighting kit Kato 11-211 (11-212)
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