There's one set containing 2 extra straights, totalling 4. I bought that one and 2 others for a total of 8 straights, so I can play the 8 foot long LotOW train scenario. I also own about 200 to 300 Meters of 0-Gauge tracks, they would fit, but I think they are to expensive for wargaming, compared to the Toys R' Us sets.