I use a Resmed mask on my CPAP machine and managed to lose the magnetic clip that holds it to my face. Rather than go though the hassles of going on line and trying to order a new one I designed and made my own. I have included two versions. One with a hole for a 10mm x 2mm magnet and one with a hole for a 15mm x 2mm magnet. Both work and I have been using mine for a few weeks now with no problems.