If you would like to see full details on the design of the Pneumatic Lego wheel see:
www.philohome.com
Video Description:
Definitely one of the more creative Lego creations we've seen, this "Pneumatic Wheel" has no electronics and is controlled with two hand pumps — utilizing just six pistons/switches
Actually, the exact need of the narrator was just to explain about the Pneumatic Wheels which their firm trades with from a long term duration just to facilitate their clients with such products.
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