[Premium Stainless Steel 304] Kitchen Sink Strainer is made of high quality stainless steel and durable The thickness of our sink plug strainer makes it more sturdy and durable. The outside diamater of kitchen sink strainer is 78mm. The rubber seal diamater is 55mm, and the bearing-to-rim measurement is 30mm. ATTENTION: Please comfirm the hole diamater of your sink is 78.3-80 mm before placing the order!!! [Smooth Design]Our strainer plug designed in smooth shape with small holes, it can filter waste effectively but let water flow. [Dual Function Strainer and Plug] sink strainer plug can be used as a sink plug and filter at the same time. Press the knob dwon to fill sink, and lift it slightly to drain the water and collect all the residues. Our kitchen sink plug replacement is easy to install and easy to remove. Compatible for bathroom sinks and basins along with bath tubs, showers and kitchen sink. Quantity:2pcs