The 33913 Cargo Tunnel Figure-8 Set is a BRIO World railway set built around a classic figure-eight track layout with a large mountain tunnel at its centre. The wooden railway climbs over the mountain before looping back through the tunnel, creating an engaging two-level route for transporting cargo. Its combination of elevated track, freight play and a traditional figure-eight design makes it a versatile starter railway that can also be expanded with other BRIO World sets.