- The 40105 train set with long/cross seat conversion specifications, which are also used for subway direct trains, is commercialized.
- The gently curved front end, clean aluminum body shape, and colorful coloring are realistically reproduced.
- The long/cross conversion seats are in the form of cross seats, with cars ①to ⑨ facing Hanno and car ⑩ facing Ikebukuro. The partner zone is also reproduced.
- The digital radio antenna added to the roof of the leading car and the intermediate car (40405) with the IR antenna removed are reproduced.
- The use of a slotless motor achieves smooth and quiet running.
- The intermediate coupling section uses a body-mounted close-coupling coupler without a hook for each car. The front section uses a dummy coupler
- Head/tail lights and front destination display lights up (white LEDs used)
- The front display is already installed with "74M/S-TRAIN Motomachi-Chinatown", and replacement front displays include "S-TRAIN Seibu Chichibu", "Hajima Liner Hajima", and "plain"
- The side display is printed in black. Destination display stickers are included
Compatible with interior lighting kit Kato 11-211 and Kato 11-212
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