Description The steam model is made of copper and stainless steel steel dignified retro design technology skills Through a small fire heating boiler can operate normally is the collection It has a leveler using 3MM thick tempered glass The boiler can hold 90ml of water working time about 20 minutes It is equipped with a safety valve The safety pressure is 5KG Total length 85mmFull size 82mmFull height 74mmBore 10mmStroke 15mmWeight 367gOutput shaft 4mmPackage Included 1 X Mini Steam Engine