The "Master 2" is a basic set of endless tracks with a turnaround line that uses the R315 curve, which allows Shinkansen trains to run on it. Plan Variations Combine the "V Track Set Series" according to your situation, and then you are free to choose the rolling stock of your choice. Even model railroading beginners can add to the layout plan as they wish. From small layouts to large layouts, N-Gauge Uni-Track can be freely expanded.