Design for Rainfall Showerhead: 16 inch replacement ceiling mounted shower head extender arm for bathroom shower systems, rainfall showerheadRust Resistant Shower Arm: Made of stainless steel, rigid and strong enough to support 12 to 16 inch big rain shower head. has been committed to developing shower arm for many years. Better quality products and more favorable prices. If you are not satisfied with the item for any reason, feel free to contact us, we promise you a happy solutionEasy to install: It only takes a few minutes to install extension shower arm in wall. extension arm is suitable for most standard US plumbing connectionsCeiling Mounted: 1/2" American Standard Connector. Straight shower pipe outlet reaches 16 inch, comes with square shower arm flange