These could be camping trailers or old-fashioned house trailers

Combine a semicircle curve with a center radius of 140 mm

McHenry® knuckle couplers for outstanding performance

Trainz Product Id: 11460924

Trainz Product Id: 12107208

Kadee 8001 Undecorated PS-2 Bay Covered Hopper VariantsUnitPrice_number_242.24 These could be camping trailersThis is a Kadee 8001 HO Scale Undecorated PS 2 2 Bay Covered Hopper Ready to Run Undecorated (gray). This hopper features: plastic construction, intricately realistic detail, metal wheels, and metal couplers. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Kadee Model Number: 8001 Road Name: Undecorated Scale Era: HO Scale Model Type: Freight Cars The Trainz SKU for this item is P11490153. Trainz