ivilon tension curtain rod - spring tension rod for windows or shower, 24 to 36 inch. black ivilon the ivilon tension rod will bring a new look of elegance to a wide variety of decor. versatile with an extendable telescoping design for length adjustment, this tension rod comes ready to install with easy to follow instructions and no extra hardware or tools are required. ideally suited for any space in your home, features a minimal modern design and is a simple way to elevate and beautify any space. can be used indoors, outdoors, as a bathroom shower bar, window curtains, room divider, doorways, doors, door closet, and more. rust-proof, non-slip, non-scratch, non-marking rubber. stronger springs and thicker rods prevent these rods from failing or sag. each tension rod is carefully packed on a strong eco-friendly corrugated box.