I got these to try to substitute for the Supreme Slider. I loved the size of these sheets - they cover the entire extension table. They have to be taped down. I used painter's tape, but even in just a few minutes of free motion quilting, the tape was coming loose. The sheets aren't as slick as the Supreme Sliders, so there is a bit more drag. The thing that had me going back to the Supreme Slider was that the teflon sheets made my forearms itch! Guess I'll be using them for cooking purposes, not quilting as I had hoped.