12 Inch Square Rain Shower: 304 stainless steel construction with high rust resistance. Features 360 degree adjustable solid ball nut for leak-free connection at different angles. 11 Inch Extension Arm: Solid brass construction prevents cracking and leakage. 180 degree height and angle adjustment for optimal positioning. Free Switching Mode: Simple button control to change shower functions. Nozzle and Waterproof Hose: Soft silicone nozzles resist lime scale build-up and clogging. Special woven inner material ensures complete waterproofing. Includes built-in gasket plus two extra gaskets to prevent leakage. Easy Installation: Standard 1/2 pipe threads, installs in minutes without professional help. Weight: 4.31 pounds.