The Double Decorative Rod Series combines elegant taste, sophisticated styling, fine quality and detailed craftsmanship.? The elegant white and charcoal grey PVC finials add the perfect touch to any window.?The double rods allow you to layer your window treatments providing endless options.? Perfect for coordinating valances and panels OR layering sheer panels and blackout panels.?Diameter of the front rod is 1 inch and the diameter of back rod is .75 inch. Both rods are made of metal and easily adjust telescopically to fit most windows. The set comes complete with matching, all metal hardware (brackets and screws) brackets can be adjusted to extend between 6.2 and 7.6 inches. Tools required for installation: Screwdriver and drill