I can't remember the name of it, I call it tacky, but it's the sticky clay like stuff you can use to stick posters to the wall. I love this stuff, it doesn't stain and just peels off when you take something off the wall or floor as the case may be. Just stick a piece about the size of a quarter on the bottom of the foot feed, position it where you want it and press down. It won't walk away and comes up with just a little tug if you decide to move it.