This faucet is made with High-Quality stainless steel, and it is lead-free, non-toxic, non-nickel. With a sanded surface, it is scratch-resistant, oil-free, more convenient to clean. Designed with non-air Gap, it is fully sealed and has no secondary pollution, suitable for most water purifier systems. It can withstand over 500,000 operations with high-quality ceramic valve core and no leakage. This product comes with five years warranty against manufacturing defects.