THIS IS A GREAT RUG PAD!  WE JUST PUT NEW FLOORING IN OUR REC ROOM.  I WANTED TO THEN USE ONLY ONE 5X7 RUG IN ONE AREA WHERE I DO FLOOR EXERCISES SO I WANTED IT TO PAD WELL AND MAKE THINGS MORE COMFORTABLE.  THIS PAD WORKS GREAT.  IT IS THICK AND HOLDS WELL TO THE RUG AND THE FLOOR.