Mirror polished and nickelplated boiler, diameter 55 mm, length 140 mm, boiler capacity 250 cm³, with water gauge glass, spring loaded safety valve, filler cap. Boiler heated with butane gas. Removable nickelplated gas holder with filler and regulating valve, suitable for all conventional filling devices. Gas consumption about 20 g, flywheel with a diameter of 50 mm, fully reversible (allowing forward and reverse), self starting automatic drive. Installation of an universal coupling with a diameter of 4 mm is possible on either side of the drive shaft. Fully reversible steam regulator , infinitely variable, RC-connection can be joined to the reversing lever. Weight (complete) 1,0 kg (1,3 kg with filled boiler). Size of base plate boiler and gas holder: Length 180 mm, width 110 mm, height 140 mm, weight 0,6 kg. Aggregate: Length 125 m, width 90 mm, height 100 m, weight 0,4 kg.