Create a more complex track layout by expanding your existing American Flyer 2-Rail S Gauge Track Layout with the Lionel American Flyer 30 Inch Straight 2-Rail S Gauge Model Train FasTrack. FasTrack has a fantastic prototypical look and creates a tight reliable connection with an easy snap-together locking mechanism. Lionel S Gauge products are approximately 1:64 in scale and are sold under the name American Flyer. Lionel S Gauge requires American Flyer 2-Rail FasTrack due to being narrower than O, it has two rails and supports American Flyer and other S Gauge cars only. S Gauge products are recommended for train hobbyist and collectors who prefer a scale smaller than our Traditional O Gauge or O Scale line.