I ordered 2 of these for my faux fur rugs (that I also ordered from Wayfair) 
They really added enough cushion for what I was looking for. A little larger then the rugs I ordered which is good, easy to cut with kitchen scissors.
The pad is " sticky " on both sides so if you have an extra pair of hands to help with placement , expecially if it is a larger run, it would help. These rugs really stay put !!  Great value.