Standard Gooseneck Shapes VERTICAL MOUNT GOOSENECK Vertical mounted gooseneck designed to be used on roof tops or overhangs. This gooseneck comes assembled with a standard 1/2" hub to fit all Ark reflectors. It comes with a round heavy duty cover plate to fit a standard round bell box. Standard colors available to match reflectors. Overall Height: 40" STANDARD COLORS White,Black,Red,Blue,Yellow,Green, Galvanized , Satin Nickel, Satin Copper.