This is a sink drain strainer. It's great because it doesn't overflow easily, even when it collects a lot of debris! Not only does it reduce the frequency of cleaning the sink drain, but you can also easily dispose of the collected debris by simply throwing away the net. Gokui Drain I finally received the product about two months after ordering it. I tried it, but unfortunately, the size didn't fit my sink drain, so I'm selling it. It has been opened, but it is unused. Three nets that came with the purchase are also included. There are no pets or smokers. This is a personal inspection. Please refrain from purchasing if you are sensitive to details.