[UPGRADED DIAMETER]: The diameter of the tension rods 28 to 48 inches is 0.9 inch, built-in upgraded powerful spring, which can carry up to 11 pounds. The best use of length is 30-46 inches. [NON-SLIP & STABLE]: This tension rod is made of carbon steel, the bottom of both ends is a non-slip PVC to Increase friction of the surface to prevent sliding. [EASY to INSTALL]: No need drill or screw, just turn round and pull the adjustable tension rods for windows 28 to 48 inch, you can finish installation in seconds, firm, tight, and without scratch to the wall, door, window. [WIDELY USED]: Come with 4 pack of spring tension rods, the multi-functional tension rods design is perfect for windows, bathrooms, door partitions, kitchen, wardrobes, bookcases, shoe racks and more. [GREAT TENSION ROD]: The spring tension curtain rod are suitable for all kinds of surfaces, including wallpaper, tiles, glass, wooden frames and other walls; The no drilling spring tension rod make your home more neat and orderly. Diameter: 0.9 inch Carrying capacity: 11 lbs Package includes: 4 x tension rods 28 to 48 inches Material: Carbon steel, PVC, rubber Adjustable length: 28 inches to 48 inches (approximately) Recommended length: 30 inches to 46 inches Uses: Tension rod can be use as tension curtain rod, tension shower rod, tension rod for closet, tension rods for windows 28 to 48 inch, kitchen storage rods, shoe racks, clothes support rods, tension rod shower caddy, room divider tension rod, etc. Install the wall: All kinds of smooth and rough walls. Features: 1. Upgraded diameter 0.9 inch, built-in upgraded powerful spring, load-bearing up to 11 pounds. 2. It is made of carbon steel, the exterior is adopts electrostatic spraying to prevent rust, non-slip PVC rubber bottom . 3. Complete the installation in seconds, without damages to the walls, doors, windows. 4. The multifunctional tension rod design is suitable for windows, bathrooms, door partitions, kitchen, wardrobes, bookcases, shoe racks, etc. Using steps: Step 1: Extend the length of the spring rod to the required length (about 1-2 inch more than the actual length) Step 2: Fix one end of the tie tension rods, and the other end forms a 45-degree angle with the wall. Step 3: Push the other end of the rod up so that it is perpendicular to the wall. Tips: 1. Please carefully confirm whether the size meets your needs before purchase. 2. During installation and use, press two ends to the maximum and fix them.