The connector size is a remarkable 1/8 square

Features: Laser cut wood

Here is a MTH 80-60020 New York Central 2-Car Sleeper Passenger Set (Dreyfuss 1940 scheme)

The Trainz SKU for this item is P11506908

free rolling and detailed trucks

Lionel 6-11338 O Alton Limited 4-6-2 Pacific Steam Locomotive #657 ProductID_11478980 The connector size is aHere is a Lionel 6 11338 O Alton Limited 4 6 2 Pacific Steam Locomotive #657. The most colorful steam locomotives return for passenger service in 2012! Ready for duty are Central of New Jerseys The Blue Comet, Chicago & Altons Alton Limited, and Southerns Crescent Limited. Each locomotive is upgraded with LEGACY Control System and the Whistle Steam smoke effect. To create a passenger train, matching heavyweight cars are available for each locomotive.