2 month UPDATE  this is a haven for mold! Although it works well to protect my porcelain sink, it requires a lot of maintenance. There is mold that I have to clean out at the bottom of my sink once a week and on the bottom of this sink grid. It’s pretty gross. Considering throwing this out. FYI
I bought this for my 27inch sink but it is 2 inches too long. This will work best for the interior of a 29-30 inch sink. FYI. My husband had to cut it so it fit but it works well to protect my farmhouse sink. Nice design around the drain and easy to clean