This Shower Rod Slide Rail Holder Is Designed For 24Mm Diameter Round Shower Rods. Made From Durable Abs Plastic With A Sleek Chrome Finish It Offers A Universal Fit For Most Standard Shower Rods. Please Measure Your Shower Rod's Diameter Carefully Before Purchasing To Ensure Compatibility. Installation Is Simple; Just Press The Release Button. Ideal For Holding Handheld Shower Heads Securely In Your Bathroom.