[High quality material] These sink strainer plugs are made of high quality stainless steel, copper and rubber, strong and durable, not easy to deform, anti-corrosion and wear-resistant, not easy to break. rust, easy to clean, and can be reused for a long time. [Practicality] The water tank filter cap can effectively filter food, garbage, residue, prevent the pipe from leaking. sewer from getting clogged, keep the water flow steady, and drain the sewage and dirt easily, which is very convenient. [Excellent structure] The rubber sealing ring has strong resistance heat-resistant, ozone-resistant, good airtightness and corrosion resistance, which can prevent the formation of unpleasant odors and the clogging of drain pipes. The nut can be easily grasped, which is convenient for emptying filtered waste and keeping the sink clean. The sink is 80mm/3.15in, suitable for sinks with a diameter of 79-81mm/3.11-3.19in. Suitable for most swimming pools with closed caps. [Package Includes] You will get 10 pieces of sink filter caps, which are enough for your long-term use and meet your replacement needs.