1. Full copper chrome plating, 24-hour acid salt spray test surface, corrosion resistance, high brightness 2. Thick copper tube, slim and fashionable ergonomic design, increasing the rotating handle on both sides, can adjust the spray angle freely, not easy to loosen 3. Adjustable shower arm allows you to adjust the length and angle of your standard or rain shower head, extending it up and out 4. Double-sided internal dual gear design, for extra heavy weight capacity. To reduce abrasion during angle adjustments. At the same time, increase the shower arm bearing, eliminate sagging of shower arms 5. Can be installed independently or on the shower arm to adjust the extension length