Advantage: Our Shower Arm adopts special process technology with widened sealing surface of water outlet to ensure close contact with the sealing gasket of shower head. 95% of shower heads can achieve good water sealing effect without teflon tape, so theres no need to worry about the beauty of bathroom will be affected by the residue of teflon tapes. Corrosion Resistant and Rust-proof: Our pipe is made of high-grade 304 Stainless Steel with over twice strength of ordinary brass, good resistance to acid, alkali and salt, long-term corrosion resistance to avoid shower heads blockage due to rust residues, especially suitable for hard water and hot spring water. Matte Black FINISH: Electroplated Matte Black, Not Painted Black.There Is No Need to Worry About the Paint Falling Off. No Fade, Stain-proof, Offers the Best Solution to Anti-fingerprint. Design: Our Shower Arm is 6 Inches long, the thread specification of inlet is 1/2"-14 NPT, suitable for standard shower pipes. The thread specification of outlet is 1/2"-14 NPT (compatible with 1/2" IPS thread), suitable for sprinkles of standard interface. Installation: Designed to install quickly with no hassle. No plumbers or tools required. AFTER-SALES SERVICE: In case of any problems or complaints during use or installation, please dont hesitate to contact us and we will respond with solutions within 24 hours. Its always our persistence and belief to provide high-quality products and satisfactory customer services.