The magnets on this nicely keep this pad in place. When placed on my shoulders, I put a small pillow under my neck outside the pad to keep the flap in place, so my neck benefits from the heat as well. It doesn't always work as well as I'd like and the flap tends to bunch up… However, even with that issue, it works wonderfully. The auto off button keeps it working for more than two hours which I greatly appreciate. Sometimes I spread it out behind my back and hips in the chair so it treats different areas as well.