I wish I had taken other reviews more to heart. I am typically flexible on quality variations with Wayfair products because of low prices, but this is the worst.
This rug is so light one wonders how it is intended for floor use unless going under heavy furniture. This said, beware the small sizes that are supposed to work on their own. the "Anti-fatigue" in desc. is BS as this has no real thickness.
As others said it is also packaged poorly considering the material will not flatten after laid out, even after weighted furniture on it. So even under furniture it look wonky and the material has a very cheap appearance. I have reverse-rolled it for a week+ and hoping for a smoother outcome, and that carpet tape will help it stay in place so it will not simply be a slip hazard. 
honestly, just dont buy this without seeing one first.