Mini Steam Engine Model

.Beautiful Appearance: Small and novel in shape, can be placed in the palm of your hand like a treasure.Exquisite mini, let a person fondle admiringly. Is an excellent craft .High Quality: The product is made of all brass , delicate execution, bright surface, glittering .Parameters: Steam engine length 65mm, width 46mm, height 73mm. The weight is 288g, the cylinder diameter is 12mm, and the stroke is 12mm. Output shaft diameter is 4 mm .The Operation Is Simple: Connect the boiler by yourself (the boiler is self-supplied), add water to the boiler and heat the boiler. After heating for several tens of seconds, use the steam wheel flywheel to assist the hand. .Operational Significance And Value: By operating the steam engine model, you can learn the steam operation principle more intuitively and deepen your child's interest in physics learning.At the same time, this model is still a collectible collection .Tips: The steam engine is a delicate model, so be careful .The product does not