These rugs are thin and they are rolled up when you get them and they are horribly stiff. I put them in the sun, I put the under another heavier rug for 5 days, and I finally tried the upside down on the floor for a few days. Then I re-rolled them inside out.  They still lift along the edges. I would have sent them back except that it would probably cost a lot to do so. As it is, I am using them, but don't expect them last as long as my last rung.  

Pros: Can't think of any
Cons: thin, stiff and contain wrinkles from being rolled up.