I suggest passing on the magnets from Michales. I bought the only ones that look like rare earth and I truly doubt they are. They are about ½” in diameter and one is not nearly as strong as the 3/16” diameter rare earth I have.

After installing two of those “Michales” magnets so they would work face to face to hold down the back part of a canopy that is pinned in the front, I doubt it’s going to work. I can see that canopy coming off in an inverted loop.

A guy at local hobby shop told me Radio Shack sells them, however at a premium price.