The Gripper Easy Install Adjustable Curved Shower Rod at Bed Bath & Beyond - YouTube
Amazon.com: Zenna Home Tension Shower Curtain Rod, 36" to 60" Adjustable Steel Shower Rod, Expandable, Rust Resistant, No Drilling, White : Home & Kitchen
Cubilan 72 in. Tension Mounted Stainless Steel Adjustable Heavy Duty Spring Bath Shower Curtain Rod in Brushed Nickel HD-1VG - The Home Depot
Moen 57-in to 60-in Tension Mount Brushed Nickel Tension Single Curve Adjustable Shower Curtain Rod in the Shower Rods department at Lowes.com