This is a rail set for creating a double-track circular layout with Capsule Plarail. In addition to the basic circular rails, we've added rails that make a circuit with a curve that is 3 cm larger in radius. We have released a video related to this product on Youtube. https://youtu.be/f9jCpSzg-7I It is designed and colored to resemble real rails. It can also be connected to regular Capsule Plarail rails. Set Contents 45-degree curved rail (convex-concave) x 6 45-degree curved rail (convex-convex) x 1 45-degree curved rail (concave-concave) x 1 4x straight rail x 1 2x straight rail x 4 Standard straight rail x 2 2/3 straight rail x 2 1/2 straight rail (convex-concave) x 2 1/2 straight rail (convex-convex) x 2 1/2 straight rail (convex-concave) x 2 1/3 straight rail x 2 Double-track outer curve rail (convex-concave) x 6 Double-track outer curve rail (convex-convex) x 1 Double-track outer curve rail (concave-concave) x 1 Since this set includes more rails that are longer than the Capsule Plarail rails, the trains run more stably. The rail running surface is only on one side. The back side has a flat structure. For wind-up Capsule Plarail, the winder (the knob for winding the spring) may collide, so please be careful with the layout. ※This product is a personal creation made with a 3D printer. Please be aware that there may be stripes, color differences, and surface roughness due to manufacturing. ※PLA, a plant-based plastic, is used for the material. Please be careful as it is prone to deformation in high temperatures. Thank you for watching.