Product Number: TU-1 This is a genuine power unit that was only available for a short period, about a quarter of a century ago. It does not have the original box, and it is only the unit itself, housed in a case for a single-car unit from Saidaiji. There are no noticeable scratches or damage on the exterior. I have confirmed that it operates when powered on, and it seems to be a specification from the beginning that it does not have low speed. However, the running is shaky and jerky. I think it should be adjusted. Because of the condition described above, I do not recommend purchase for those who are sensitive. Shipping will be via Yu-Packet Post. When requesting a price reduction, bulk purchase, or making various comments, please read the profile beforehand. Type of vehicle...Optional parts Type...Unit