Diameter of the all metal rod is .75 in and easily adjusts to fit windows measuring in widths from 28 in to 48 in, 48 in to 86 in, 66 in to 120 in * The set comes complete with matching metal hardware for wall or ceiling mount; Brackets can be adjusted to extend between 3 in. to 3.75 in * Tools required for installation: Screwdriver and drill * The elegant mahogany and brushed gold finials are beautiful and add the perfect touch to any window