Strainer and Stopper - The sink strainer stopper can act as a sink strainer or sink stopper by pushing the locking bar down or up a little. The easy to clean kitchen sink strainer has an excellent corrosion and rust resistant surface to keep debris away from the surface. Just take it out of the sink drain to clean it daily. Stainless Steel 304 Steel Material: durable and corrosion resistant for long term use, meets safety standards to protect the health of you and your family in daily use. Compatible with Standard Drains: The kitchen sink stopper fits most standard sink drains (3-1/2 inch) with a round hole in the center. And easy to install. Note: Please check the size and type of the sink drain before purchasing. The anti-clogging and quick-draining strainer basket has appropriately sized holes to effectively block food residue to prevent clogging and allow water to drain quickly. Note: The data is all manual measurement, please allow an error of 1-3 cm. Due to the difference in