Perfect for my repair job.
I had an oven door that wouldn't close completely, and the hinges weren't available any more. Rather than replace the oven, I thought magnets attached to the door surround could work, as both surfaces were metal. It was trial and error, but the two heat resistant 38mm discs were sufficient to close the door completely. I now have a few extra on hand if required, but a month on, it's still snapping closed!