This high profile trumpet style black aluminum flash collar is made to fit a 7 inch bottom diameter flagpole and has an outside diameter of 16 inches. It stands 6-5/8 inches high and has a wall thickness of .060 (Made in the U.S.A.)
Flash Collar 16 Dia. X 6-5/8 High For 7 Inch Diameter Pole Black - B004EPJNDC
