This ProSource strainer basket can work as a kitchen sink stopper or sink strainer by pushing it down or pulling it out a bit. Compared to the stem tab type of strainer stopper, the spring clip structure plunger makes it easier to swift from stopper to strainer. Push it into the bottom, it's a stopper, pull it out a bit, it's a strainer. The diameter of this kitchen sink drain strainer fits most standard sink drains with a narrow rectangular hole in the center. This kitchen drain stopper is made from solid stainless steel construction which is built to last. A chrome plated finish gives a delicate metal texture, which perfectly matches your sink style. This kitchen sink drain catcher traps food debris to prevent clogs in your sink, draining water easily through the 32 bar holes on the basket.