The Lionel FasTrack O gauge 5-piece track set includes 3 O36 half curved pieces and 2 1.75 inch straight pieces, perfect for creating a realistic train layout. Made of durable gray plastic, this track features a three-rail system and analog control system, ideal for O gauge model train enthusiasts. The ready-to-go pre-built design makes it easy to set up and start running trains right away, adding to the fun and excitement of model railroading.