Like many other reviewers also stated, these smaller sink mats used to be made by Rubbermaid and they were more flexible, eventually kind of molding to the sink. The Rubbermaid version holes were also evenly matched to the sink. These gray mats are okay - one will be underneath a dish tub where we put some of our dishes that are hand-washed, but on the other side of the sink, this gray mat is too stiff to put anything but a plate on - anything that stands up will fall over. I'll be keeping the gray mats as extras, and will try putting the old black Rubbermaid mats in the dishwasher to clean them. They usually last 3 or 4 years, until they start getting mildew on them, which is when I replace them. (I do not use bleach but Pine Sol works pretty good.) However, for reasons unknown, the softer, silcone sink mats only come in a bigger size that won't fit in my sink, and these are the only approx 11" x 12" mats that I could find, checking several online vendors. They weren't expensive so I'll keep them but I think for most of us who are used to the Rubbermaid mats, these are a disappointment. The first picture is my current Rubbermaid mat, the second picture is this new mat that is stiff plastic. You can see it doesn't quite line up, either.