Kato 20210 N Scale UniTrack 310mm 12-3/16" Double Crossover Tunnel 10 Pair per Package

10 Pair per Package

a staircase to the upper floor and more

40 mm Diameter

Entry panel right side

Kato 20210 N Scale UniTrack 310mm 12-3/16" Double Crossover Tunnel 10 Pair per PackageKato 20210 N Scale UniTrack 310mm 12 3 16" Double Crossover Use two feeder modules. Plan your layout to have a feeder equipped module on both sides of the crossover, and wire feeders from each track together at the power supplies. For all but the smallest layouts, this is a good strategy anyway. Equip the crossover module with jumpers. Build it as a double length module, with straight track at either end. Use terminal joiners to attach jumper wires