Brass: The extension arm is made from 304 stainless steel, sturdy and durable, resistant to rust and corrosion, ensuring long-lasting in bathrooms Functional Advantage: Used for connecting and extending shower arm, and connects seamlessly with most standard shower heads and arms Installation Steps: Turn off the water supply, detach the existing shower arm, apply the sealing tape to the threads, attach the extension arm, tighten it with a wrench, reattach the showerhead, test for leaks, and adjust as necessary Versatile Use: Great for use in bathrooms where a standard shower head needs to be adjusted for better positioning, or for those who wish to install a new shower head at a different height Note: Please measure the size before purchasing. Due to manual measurement, please allow a 1-5mm error. Material: Brass Thread Specification: G 1/2 Male to G1/2 Female Thread Length: 9 mm/0.35 inch Total Size: 40 x 26 mm/1.57 x 1.02 inch(L*OD) 2 Pcs x Stainless Steel Pipe Fitting 1 Pc x Sealing Tape