They seem to work. They fit my 2015 Mazda 3 very well. We had snow on the roads for about a week and they arrived yesterday just as it was starting to melt. The roads were a mixture of pack ice, slush and damp. I was a little apprehensive about riding them in mixed conditions, especially cleared areas with wet tarmac, but I later took them off and they proved intact. They were easy to put on and take off. I'm still a little worried about durability but yesterday they seem to have done the job.