The rug should be rectangular in shape, but there were factory flaws on both rugs (ordered 2) such that there was extra material that should have been trimmed off  in some places and not enough material in others to make it a completely symmetrical rectangular rug.  I am sure they are banking on the fact that most will not return the item.  Hopefully they will do what they were made for... keep dirt and outside debris from being tracked through house.  We'll see