I got this in several sizes and noted they are not quite the sizes as indicated in the description:  2'5" x 4'5" is actually 2'4" x 4'5",  3'7" x 5'6" is actually 3'6" x 5'7",  and 2'3" x 7'6" is actually 2'2" x 7'6".  Colors are lovely.  The thickness is quality.  Glad I purchased this.  Backing is NOT rubberized for no-slip.