I have a rug which has lost its ability to stick on to my carpeted floor and it tends to curl up at times. This is dangerous and can cause nasty falls inside one’s home. I would like to find out where one can obtain an anti-slip pad for a couple of my rugs I use indoors. As can be observed from the pix below, had to use masking tape to stop the slip pad from curling up and as a result lifting the rug & causing it to curl.