EXTRA-LARGE SIZEShower curtain rod holder size: 3.15*3.15*0.59/inch. You can choose our shower curtain rod holder,if your shower rod end cover less than 3.15" in Diameter. UPGRADED DESIGNThe no drill tension shower curtain rod holder can carry 50 pounds, which can effectively prevent the shower curtain rod from falling, and protect the safety of you and your family (Note: Please find the correct position before installation to prevent pasting errors). PRACTICAL DESIGN-Made of high quality ABS material,simple and elegant design,durable. A good helper for bathroom curtain installation. Shower rod holders also can help you save some times to hold up the shower curtain. TWO INSTALLATION METHODSTension rod holder suit for all kinds of bathroom walls. If your wall is uneven or rough, please install the mount onto the wall with SCREWS (No drilling or damage); if your wall is flat & smooth walls, the rod retainer can be installed simply by peeling and pasting without drilling or using any tools