This is a B-Train Shinkansen 0 Series 12-car set. It includes Basic Set A (4 cars), Additional Set B (4 cars), and Additional Set C (4 cars). I have kept it unopened since I purchased it. As it is a personal item, I believe there may be scratches and dents on the outer boxes. Please consider the condition as is. Please check the photos for details. Feel free to ask any questions in the comments. I will not sell individual sets separately. Shipping will be via Takkyubin (home delivery service) without opening the boxes. If you are paying via convenience store/ATM, please complete the payment within 24 hours of purchase.