The Kenney Mission 3/4"" Decorative Bay Window Double Curtain Rod is a great solution for updating and layering the curtains, sheers, or valances on your bay window or oriel window. The 3/4 inch diameter Mission bay window double curtain rod in black or brushed nickel features large square finials to make a bolder statement. Layering curtains gives you more control over how much light to let into your room throughout the day and provides more insulation during colder months. To layer, place heavier, decorative curtains on the front 3/4” rod and lighter, sheer curtains on the back 5/8” rod. Made of steel, this bay window curtain rod can be adjusted in the center 28-72 inches and on both sides 22-37 inches and projects 2.8 inches from the wall. Drapery Hardware Set Includes: one telescoping steel bay window double curtain rod with decorative finials (1.89” L 2.47” W X 2.47” H), 6 mounting brackets, 4 swivel connection knuckles, screws, drywall anchors, and installation instructions.