【Built-in Powerful Spring】: This shower curtain rod with a built-in powerful spring boasts excellent elasticity, providing enough tension to steadily support the rod. Made of high-quality iron and rubber materials with a baked finish, these tension rods are rust-proof, smooth, and exquisite. 【Non-Slip Rubber Disc】: Both ends of this shower curtain rod feature non-slip rubber, increasing friction between the rod and the wall, ensuring a tight fit and preventing it from easily falling off. The tension rod provides constant tension, remaining reliable and secure; no need to worry about slipping or falling. 【No Tools, No Screws, No Holes】: Simply twist and pull these spring rods without any tools, installed in a minute. No drilling, no damage to walls/doors/windows. You can adjust the length of the tension rod in seconds. 【Customizable Fit for Your Space】: Rotate the rods to adjust the length from 30 to 50cm depending on the length of your cabinet, cupboard, refrigerator, or other location needing rods. You get 5 retractable curtain rods and 5 hooks—a great combination and sufficient quantity to meet your daily needs and replacements. 【Ideas for Many DIY Projects】: Used as a curtain rod for narrow windows, side windows, shower stalls, or bathtubs. It can also be used to divide narrow spaces like cabinets, shelves, drawers, cupboards, and under-sink areas to save space and organize. It can even be used to gather and organize kitchen utensils.