These compact slope piers are smaller than Plarail's mini bridge piers and sloped curve rails. They are very simple and do not extend beyond the width of the rails. They are yellow piers, similar in color to standard Plarail bridge piers. They can also be used with double-track rails, making it easy to create three-dimensional double-track layouts, figure-eight layouts, and more. Slopes can be created on both curves and straight sections. A video about this product is available on YouTube, so please take a look. https://www.youtube.com/shorts/GSdDRla7hBs Set Contents Compact Slope Pier (Low) x 4 Compact Slope Pier (Medium) x 4 Compact Slope Pier (High) x 4 ※This product is a personal creation made with a 3D printer. Please be aware that due to manufacturing, there may be stripe patterns, color differences, and surface roughness. ※The material used is ABS plastic, which is commonly used in toys. It is a heat-sensitive material, so please do not store it in direct sunlight or in places with high temperatures for extended periods. Thank you for viewing.