Spring Tension Rod: Our shower curtain rod uses customized high-quality springs inside to prevent deformation and increase support by 50% without tilting or sliding. In addition, two brackets greatly increase the load-bearing capacity Adjustable Shower Rod: Our tension curtain rod can be adjusted from 28 "to 48" through splicing and extension, making it easy to fit different spaces. It can be used on smooth and rough surfaces such as glass, wallpaper, painted walls, tile walls, etc. Rust Prevention: Our gold tension rod for windows is made of stainless steel and coated with high-density paint on the surface, providing double-layer protection. Installation Instructions: This small shower rod includes 3 tubes, a spring tube, and 2 connecting tubes of different lengths. Pull out the inner rod of the spring to the desired length, then twist the rod to lock it, and connect the other connecting tubes. The specific method can be found in the pictures and videos on the website Widely Applicable: Our extendable pole for bathroom can be used for small-sized positions such as doorways, windows, kitchens, bathrooms, etc. Please choose according to your actual usage scenario.