Metal Hot Double Cylinder Engine Model Bulb External Combustion Heat Steam Power Physics Science Experiment Equipment Engine Model

Working principle: The engine uses gas expansion and cold compression to generate power. Please use 95% alcohol (not included) when operating. Dry air expands to generate power. Do not add water, kerosene, gasoline, lighter fluid or white wine. Exquisite appearance: The metal bracket and metal piston are firm, and the texture and beauty are perfectly combined. The pursuit of details, the overall polishing is fine, the feel is smooth, and it has a strong metallic texture and modern technological sense. The product itself has been assembled and has collection value and can be used as a decoration. Note: 1) Do not add water, kerosene, gasoline, lighter fluid or liquor. 2) Be careful when operating to avoid burns. 3) The bulb cord is included. 4) Suitable for people over 14 years old. Product dimensions: 6.30x3.43x3.27 inches [16x8.7x8.3 cm] Material: Metal, Manufacturer: CWCQGH