Thank you for viewing. This is a 4-car set of the Keisei Electric Railway 3600 series from the Railway Collection (specifically from the 31st release of the Railway Collection, details below). The pantographs have been replaced with the specified product, a motor has been installed, and the trailer cars have had their metal wheels replaced, allowing for immediate operation (motor operation has been confirmed). However, please be aware of the following modifications before purchasing: * The car numbers have been changed to the 3668 formation by cutting and splicing Greenmax stickers (as only two cars are represented in the original product). * Priority seat indicators have been applied to the windows using Greenmax stickers, but due to the available stickers, they are not identical on all four cars, resulting in some differences. * TN couplers are installed on the front of both leading cars. Couplers on the other sections, including the front of the intermediate cars, use the N-gauge conversion parts specified by the product. * For the trailer car weights, metal weights from a Greenmax economy kit have been directly attached to the interior parts (they are attached with double-sided tape and can be easily removed). * The original case is not available, so the set is stored in a suitable 4-car book case. The set will be shipped in this case. Please note that there may be other modifications that I have overlooked or forgotten (I will confirm and answer if you have any questions). Also, please be aware of paint irregularities typical of the Railway Collection (such as those seen on the front of the 3628 car). Thank you for your understanding.