Bigjigs Rail Wooden High Level Track Expansion Pack - 27 Pieces - Other Major Rail Brands are Compatible A great way to expand any wooden train set and create a fun, multi-level track! This 27 piece set includes ascending & descending track risers and curved & straight track pieces. Beautifully crafted & durable wooden track that will last for generations. Most other major wooden railway brands are compatible with Bigjigs Rail. Made from high quality, responsibly sourced materials.