The included track makes a 17" x 72" Oval

This is Atlas 50001884 N Scale ACF 3560 Center-Flow Covered Hopper Ready to Run ACFX #64181 (gray

Trainz Product Id: 11636073

This is a MTH 20-68256 O Alaska Railroad 70' ABS Smooth-Side Railway Post Office #57

The Trainz SKU for this item is P11964055

Rapido Trains 127098 HO Undecorated (MIL) 3800 cu ft Cylindrical Hopper DwDetails-0.40-0.40-6.30-6.30-4.30-2 The included track makes aThis is a Rapido Trains 127098 HO Scale Undecorated Marine Industries (MIL) 3800 cu. ft. Cylindrical Hopper. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Rapido Trains Model Number: 127098 Scale Era: HO Scale Model Type: Freight Cars The Trainz SKU for this item is P12251727. Trainz Product Id: 12251727