Metal:Shower arms are made of high quality stainless steel and are strong and resistant to corrosion
US standard: Shower arms and flanges conform to US plumbing standards,1/2 "-14 NPT tapered threads for wall connection and 1/2" -14 G threads for shower head connection.
Shower arms maintain water pressure and flow in your shower. Matte Black finished to match your black shower head
Package:Includes all parts required for installation,shower arm,flange,tape,washer
Good after-sale: If you have any questions on use and installation, please contact us, we will reply within 24 hours.