Ever wish you could hang curtains or drapes without any hassle, drilling or damage to your walls? Introducing Chroma by Umbra The Chroma Tension Rod by Umbra is a 7/8-inch diameter extendable tension rod that was designed to fit a variety of window sizes. Chroma mounts inside your window frame (without the need for mounting hardware or drilling) and uses tension to stay in place and support your curtains or sheer curtains. Chroma is available in a variety of sizes to ensure a perfect fit in almost any window. It also comes in several colors; so finding the right match for your décor is easy. About Umbra: A global product design company providing original, modern, casual and functional design for the home.