Save 0 goo.gl For sale is ONE kinetic copper wind sculpture with a theme of Double Windmills. The blades are positioned so the dual spinners will spin in opposite directions once caught in the wind. The entire wind sculpture including the pole and its fixture is made of pure copper with brass hardware. The only metal is the stainless steel ball bearings that are completely covered by brass hardware. Two ball bearings make the two windmill wheels move independently and opposite from eath other.

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