High Quality :Faucet body is made from sturdy brass , ensuring high quality and longevity,16-inch extra large overhead shower is made from SUS 304 stainless steel | Standard U.S.Threads: Our connectors are standard 1/2 NPT tapered threads, compatible with most existing shower systems. All hardware and parts are included | Pressure balance valve's cartridge monitor water pressure balance, helping to protect you from being scalded by sudden changes in hot or cold water pressure | Air pressure technology : Inject the air into rain Shower head to mix water with air, and the water pressure up to 2.5GPM instantly, giving you a pleasant Shower；with self-clean nozzle,easy to clean and maintain | Brushed Nickel Appearance - With the Brushed Nickel appearance of European and American style and the multi-layered electroplating passing the Salt Spray Test, it can easily face the surface corrosion by humid environment in the shower room