KXLIFE Spring Tension Curtain Rods are made of quality carbon steel with non-slip caps, corrosion-resistant and rust-proof. High-strength durable spring inside, can be used repeatedly. One rod can bear 3-5 pounds. These rods are easy to set up with a simple twist, providing consistent tension for a long-lasting, tight, secure fit. They are versatile and can be used as small curtain rods for sidelight windows, narrow drawer and cabinet dividers, french doors, patio doors, front doors, and small spaces saving and organizing. The rods are suitable for 7 1/4 to 11 3/4 inches (18.5-30cm) and have a rod diameter of 1/2" with caps diameter of 3/4". Please measure the required size before buying.