Rail variations for expanding a real rail layout. I made large curved rails that allow you to lay rails on the outside of double-track rails. If you also use the small-diameter curved rails I am making separately, a quadruple-track layout will be possible. Set contents Real double-track outer curve rails: 8 凸-凸 (convex-convex) joints: 8 Compact sloped bridge piers (low): 1 Compact sloped bridge piers (medium): 1 Compact sloped bridge piers (high): 1 Joints for compact sloped bridge piers: 3 The length of the rails is about 1.5 times that of standard rails. The turning radius is 12 cm larger. The rail running surface is only on one side. The sleepers, which were floating in the air with the genuine rails, are placed on the ground with these rails. Only at both ends of the rails, there are indentations for connecting to block piers. By using the small-diameter curved rails I am making separately in combination, a quadruple-track curve layout with real rails is possible in combination with standard rails. This time, a set of compact sloped bridge piers is included. You can create a sloped layout with the dedicated joints, so please use them for connecting to elevated tracks, etc. ※This product is a personal production part made with a 3D printer. Please be aware that there may be stripe patterns, color differences, and surface roughness due to manufacturing reasons. ※PLA, a plant-based plastic, is used for the material. Please be careful as it is prone to deformation at high temperatures.