I purchased the round rug for under my kitchen table and loved the look and quality as well as the ease in cleaning.  However, when I purchased the 3 runners for kitchen work area ( sink, fridge and range) I was unable after many attempts to get the curls and ridges out in order for them to lay flat.  I am using carpet pads underneath and have tried every suggestion in other reviews to flatten them out to no avail.  I decided to keep them because I wanted some continuity of pattern in a relatively small area.  The larger round rug flattened out after a few weeks, but after more than six weeks, I am still looking at and walking on ridges.