This set replaces a single mat that had been in front of my stove for years and was starting to really show it's age. These are as sturdy as that one, with the same materials and backing. They are machine washable but is recommended to be washed in a commercial washer which wasn't something I was expecting. I'd washed the old one in my machine and may do so with these but not with both in the same cycle, and probably on a gentle cycle with maybe a few pair of jeans to keep from unbalancing during the spin cycle. Over all a good value for the money.