This is a "driver's cab" replacement for the Piko G scale BR80 steam locomotive. Converts the BR80 (which is standard gauge) to a "generic" narrow gauge locomotive or schmalspurbahn dampflok, more compatible with 1:22:5 scale trains (such as LGB). This is an original design influenced by locomotives built by Henschel and Esslingen. "Screw on" attachment using the screws from the original cab. Can be used with or without side tanks. White Strong and Flexible is a good durable material for the Garden Railway (not tested yet in foul weather ). White Strong and Flexible Polished is a smoother finish, but some of the details may be diminished .Please see Shapeways FAQ for finishing suggestions.