My mother and fiance, got me a custom handmade Lionel O gauge Test Track set.
I found the gentleman making them on the bay, and they purchased one for me for my work bench.
It is about 40 inches long, comes with a UCS, 3 track sections, the leads, and a bunch of different blocks to elevate your locomotive while working on it! Craftsman ship is top notch!! You can slide the engine holders to accommodate any size loco!
It is awesome!!!