1. Aquaiaw 12 inch round wall mount shower arm is made of 15/16 inch diameter heavy-duty solid brass tube.

Please check the mounting hole size to make sure this shower arm fits. 

2. Both shower arm and escutcheon are made of heavy-duty solid brass.

15/16 inch diameter Round Heavy-Duty Solid Brass Tube.

Both sides are 1/2-14 Tapered NPT threads.

Basic design and compatible for all fixed shower heads.

3. Brushed Gold surface finishing.

4. Flange/Escutcheon size: Diameter 2.36 inch X 0.4 inch. Flange/Escutcheon is with O-Ring inside for easy installation.