KATO 10-511 - Shinkansen Series 500 (4 car add-on set)
Item includes 4 cars with no motor.
This is an add-on set. Basic set is required to run.
KATO 10-510 - 4 car basic set
Optional add-on set available to make 16 car unit
KATO 10-512 - 8 car add-on set B