Dual-Function Sprayer: Two spray modes allow you easily switch between powerful pre-rinse spray and splash-free aerated stream at the switch button on the side of the nozzle. Gooseneck Design: High-arc,360-degree swiveling spout design allows enough room and greater access for different tasks. Long-lasting Performance: Solid brass lead-free construction and commercial design in corrosion resistant luxury polished gold finish ensures a long lasting use and great look. Easy Installation: All mounting hardware and hot/cold waterlines are included.Installation guide is included in the package box. Easy to install by yourself,no need to hire a plumber.