First an only item I ever purchased that I was not satisfied with.  The corners and ends kept curling up no matter what I tried.  I finally had to buy self adhesive linoleum tile squares and attach them all around the perimeter.  However, the curling was so bad it didn't work.  So, I bought double sided Gorilla Tape and put that on the sticky back of the tile and then laid the carpet on top of that and it finally worked.....After paying for the tiles ($16 on ebay and 2 rolls of Gorilla Tape ($5.99 each) I would have been better off purchasing a higher quality carpet for a little extra money...lesson learned