SOLID BRASSOur shower head swivel ball adapter is made of premium brass material, all metal, heavy duty and durable. You will find it thick and sturdy when you receive it. It is corrosion-resistance, and has pressure-resistance, built to last. .SWIVEL BALL JOINT This brass shower head adapter has 30 swivel angle. It can add about additional 30 swivel capability to your existing shower head for more suitable angles. Please note that the swivel ball joint made of solid brass will be a little tight when it is not mounted. And after installation, you will find it easy to be adjusted to different angles to meet your needs. .STANDARD FITTINGIt is universal 1 or 2 Inch IPS female inlet and 1 or 2 Inch IPS male outlet. It can be coected to most shower arms, shower pipes and shower heads. NO flow restrictions. .EASY INSTALLATIONThe shower head swivel ball adapter comes with a teflon tape, and two rubber washers for sealing. Just put the rubber washer into the female thread end, use the teflon tape on the threads then coect and tighten it. Can use the other extra rubber washer when coecting the male thread end if needed.