The tap is made of the best quality of brass. High quality teflon material is used in producing the ring to be put under the ball for controlling the flow of water, is made of high quality brass without rust to facilitate the opening and closing, and to pervent problems that may rust throughout the period of usage. The handle is aluminium die casting, more compact allowed to the limited area, and epoxy coating. Every piece is passing quality control system before delivery. We guarantee our Ball Tap is one of the best "SANWA" products.