Basin navel for draining water or keeping water in the sink. Made from brass High strength Good corrosion resistance Can be used for a long time Chromium plating increases the durability of the product surface.and helps increase beauty To make it even more usable Comes with a rubber ring to protect the screw nut to help prevent water leakage. Pull-type use has an overflow hole to help act as a drainage channel to prevent water from overflowing over the sink. Thread size G 1 1/4 inches. Used as a repair device or replacing the old one with a new one for continuous use.