Kato ~ N Scale ~ TV4 Street Track to Concrete Tie Double Track Expansion Set ~ 40-814Kato ~ N Scale ~ TV4 Street Track to Concrete Tie Double Track Expansion Set ~ 40 814 This is a Kato 40 814 N Scale Unitram TV4 Street Track to Concrete Tie Double Track Expansion Set. Set content: Dedicated boundary line 124 mm x 2 Straight track plate 62 mm Dedicated boundary x2 Straight track plate 62mm x 1 Straight road plate 186mm with pedestrian crossing x 4, Intersection central road x 2, Median strip set for pedestrian crossing x 1 Overhead