Shower Head Arm Roca 20 cm Rose Gold: The Ultimate Upgrade for Your Bathroom A shower head arm may seem like a small piece of your bathroom, but it can make a big difference in your overall showering experience. The Shower Head Arm Roca 20 cm Rose Gold is the perfect upgrade for any bathroom, providing both style and functionality. This shower head arm is made by Roca, a well-known and respected brand in the bathroom industry. The arm is 20 cm long, providing ample space for even the largest showerheads. The rose gold finish is elegant and modern, adding a touch of sophistication to any bathroom.