Unique hollow tube design using 7075-T6 aluminum

Snap-together UniJoiner connections on all four ends

Flexible coaxial antenna that's easy to position inside a model for

paned windows and traditional barn doors in various states of disrepair

so it functions as a complete track section the moment it's in place

Kato 20-458 N Scale 186mm (7 5/16") Double Track Plate Girder Bridge Black Spur Gears Unique hollow tube design usingKato 20 458 N Scale 186mm (7 5 16") Double Track Plate Girder Bridge Black Give your double track main line a bold, industrial crossing with this black 186mm (7 5 16") plate girder bridge. Both tracks are built in at Kato's standard double track spacing with Unitrack nickel silver rail, so the bridge functions as a complete two track section from the moment it's placed. Pair with Kato double track viaduct components and piers for elevated running.