B Train Shorty Floorboard Set for 4 Cars 22 This is a set of floorboards for 4 cars, compatible with B Train Shorty. In addition to the genuine products (running trucks T, T Kai), KATO's small vehicle trucks and Greenmax's pin-mounted trucks can be attached. If you wish to purchase in bulk, please comment. (If there are multiple people, we will prioritize the person with the highest amount, so we may not be able to meet your request.)