InterDesign Astor Constant Tension Shower Curtain Rod &ndash; Brushed Stainless Steel &ndash; extendable 26&rdquo; - 42&rdquo;, Small CONSTANT TENSION: Patented new technology keeps the curtain rod in place  no slipping. NO DRILLING, NO TOOLS: Quick and easy installation  just twist, extend and lock! CUSTOM FIT: Adjustable tension rod extends to your shower or bathtubs exact length  26 - 42. STRONG and STURDY: Rust resistant stainless steel, plastic and a non slip foot give a secure hold. THE INTERDESIGN PROMISE: Bringing you elegant, affordable home products for over 40 years.