Standard UK/ EU connection size, ensuring easy and fast installation. ADVANCED APPEARANCE AND DURABILITY: With the Nickel Brushed coating appearance of European and American style and the multi-layered electroplating passing the Salt Spray Test. The surface of the shower fixture combo is Nickel Brushed, which is both mysterious fashion and easy to clean and maintain. Don't show the dirty. It will save you time to clean room. Both shower heads apply the air augmentation technology to give you a natural rain shower experience, and high-pressure hand-held shower head will save water while ensuring the perfect shower experience. Remarks: This full set please let the professional plumbers to install it,then can let yours enjoy good bath in the bathing