LILLA is part of the Miniature British Narrow-Gauge Locomotives 00/HO Steam Series. At 1:50 scale 'LILLA' is a live steam narrow gauge saddle tank locomotive produced by Yelbal. It is compatible with HO/00 gauge track, coarse scale, wheels are uninsulated. Is is a gas fired model, with an infrared burner system, it has twin occilating cylinders with no reverse. The fuel tank will hold 10ml of lighter gas, whilst the 30ml boiler will take approximately 25ml of distilled water, allowing for a maximum runtime of up to 15 minutes (depending on conditions). This model is also fitted with a spring-loaded O-ring type saftey valve.