This is a GREENMAX N-gauge model, Home Door 2178. It's a set of 6 home doors for 20m 4-door cars, unopened and unused. This type is designed to be installed on a merge platform, and would be great for creating a railway model layout. [Brand] GREENMAX [Model Number] 2178 [Contents] Home doors for 20m 4-door cars, set of 6 [Scale] 1:150 N-gauge model Thank you. GREENMAX Home Door A for 20m 4-door cars Brand: Greenmax