Fisher-Price Thomas & Friends TrackMaster, Maron Bridge Expansion Pack Includes straight and curved track pieces, risers, and bridge play piece Connects to other TrackMaster playsets, track packs and expansion packs (sold separately) Includes 2 track adaptors, designed so you can connect the new TrackMaster track to the previous model The Maron Bridge Expansion Pack lets you create a bigger, more exciting motorized railway Perfect addition to your expandable, connectable, motorized Thomas & Friends TrackMaster world