Fisher-Price GeoTrax Elevation Track Pack-Straights This pack consists of 6 straights, 6 elevation trestles, 4 half-tracks, 2 elevation ramp tracks and 2 guardrails for lots of layouts. Allows kids to build on to and reconfigure their elevated train world. Each set includes 20 pieces! Track from the elevated track packs can be used with all of the other items in the Geo Trax System to create an even bigger world.