These could be camping trailers or old-fashioned house trailers

in windows

it WILL work the way you need it to

Model Number: 237

Trainz Product Id: 12320325

MTH 10-2126 No. 515 Standard Gauge Tank Car DwDetails-10.00-9.00-40.30-8.00-6.30-4 These could be camping trailersThis car features a stamped steel body and chassis, metal wheels and axles, operating metal latch couplers, baked enamel finish, brass trim, and measures 14 3 4 inches long. Operates On STD 42 Curves. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: MTH Model Number: 10 2126 Road Name: Sunoco (SUNX) Scale Era: Std Gauge Modern Model Type: Freight Cars The Trainz SKU for this item is P11407038. Trainz