stanwood wind sculpture: kinetic copper dual spinner - tumbling flowers stanwood wind sculpture for sale is a kinetic copper wind sculpture with a theme of tumbling flowers. the flowers 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 stainless steel ball bearings within the brass hardware allows the two leaf-mounted wheels move independently and opposite from each other. the kinetic sculpture is also capable of swiveling 360 degrees in the wind. the pole is made of heavy gauge copper and secured into the ground by an all copper 4-point anchoring system. with its heavy duty construction and swiveling head, this kinetic sculpture can withstand strong winds up to 70 mph. the copper leaves are not coated and will age naturally. if you want to preserve its original copper shine, you may spray a layer of clear coat on it. we have had great success with clear coats made by rust-oleum (crystal clear enamel) and permalac (original clearcoat lacquer satin). the craftsmanship on this kinetic sculpture is impeccable. the wheels are finely balanced and maintenance free. the sculpture is entirely weather proof and made to last for decades. we proudly back this beautiful wind sculpture with lifetime warranty. size: pole is about 6 ft tall. each wheel is about 2 ft in diameter. go to stanwood wind sculpture website to see assembly instructions.