Colour Family: BROWN Material: ALUMINUM Assembled Product Length: 14" Finish: ALUMINUM Assembled Product Width: 14" Diameter: 14" . Saves energy-operates with the slightest breeze Draws hot air from the attic in summer and moist air from the attic in winter Keeps your heating and cooling systems operating more efficiently 14" wind driven turbine Baked enamel finish Dade County approved Brown Maintenance free dual ball bearing system