Usage Tips:GREAT MATERIAL: Our Made of stainless steel, this drain's drain plug is rust resistant and has a long life. Thicker and heavier materials make this kitchen sink strainer plug sturdier. EASY TO INSTALL: Press the button to fill the sink, gently lift it to drain the water and collect the residue. rubber gasket and ball bearing allow this sink strainer to be used as a drain plug; Just push the strainer down to plug the hole. GOOD DESIGN: Each sink stopper has 20 holes, prevents food particles and other residue from falling out, making sinks more hygienic and less prone to blockages and clogging. RANGE OF USE: These two drain filters can be installed in old sinks, bathtubs, basins, and the smooth surface allows you to clean easily and conveniently. The stainless steel sink strainer is good for restaurants, caterers, food pantries, churches, cafeterias, and homes. SIZE: The outer diameter of the sink strainer is 80 mm/ 3.1 inch, suitable for sink diameter 79 - 80 mm. Note: The data is all manual measurement, please please allow 1 - 3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received Shipping Quantity: (according to the main image)