Kirsch Curtain Rod Barrel Brackets for 3/8 inch Diameter make perfect top and bottom curtain cover for exterior grass doors. Also hace a unique Gooseneck bracket for smooth curtain returns on doors. These are hard to find brackets seeked out for old home restoration. The 3/8 inch rods are made of solid aluminum and another made of solid steel. Buy your Kirsch curtain rod barrel brackets at BasicQ Curtain Rod Supply.