With the Mainstays Room Darkening Window Curtain Rod, you can upgrade your window decor quickly, easily and without damaging walls or window frames. Thanks to its patented innovation, the curtain rod offers a renter-friendly, drill-free installation solution for window décor needs. The rod's new pin pad technology allows it to securely work on most window frame surfaces, including flat metal or plastic frames, decorative frames, drywall and wood. Mounting hardware is included, along with easy instructions. The rod expands from 48 to 84 inches to fit many window spaces. It has 1.75 inches of projection from the wall to give space to style your window treatments and to allow room darkening curtains to wrap around to help block light.