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Stone Ball Fountain Floating Sphere FountainsThese heavy polished stone balls spins on a frictionless cushion of water and continues to roll until the water is shut off. This is mysterious floating sphere ball fountain. Nevertheless, even a child can stop stone ball or change the direction of its spin, or set the ball on an accelerated twirl. The gap between the ball and the base socket is about 1/4000th of an inch, so there is no danger of hurting people's fingers. It staggers everyone's imagination to see these extremely heavy balls revolve around on such little water. Rolling on a thin cushion of water, these floating sphere stone balls weigh between 200 pounds to 800lbs depending on the size. They rotate with a push from weak water pressure that is 10 psi, lower than what water hose generated 85 psi. These heavy stone balls are perfectly symmetrical that they can revolve 360 degrees in any of directions with a slightest touch. It is a perfectly balanced, highly polished stone sphere that fits precisely into its carved basin.
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