Solid Construction Made of brass sturdy constructions and longlasting quality use suitable for both plastics and metal shower heads Durable Shower Arm Arm Extends showerhead approximately 16inches from the wall solid metal construction easily supports showerheads up to 14inches in diameter Standard Connection Fits US Plumbing Standards 12 NPT tapered threads for wallmount connections and G 12 straight threads for shower head connections Brushed Nickel Finish Brushed nickel finish not only fashionable but also excellent rust resistance and durable which makes your bathroom look fancy Easily Installation Just unscrew your old arm and replace it with the new one arm attaches easily to showerhead