These snaps now come in a tin with a clear lid! I thought it would be handy for storage.
The tin is 2.5" in diameter and 7/8" tall.
I also have the empty tins in sets of three.
They are nice for all those tiny things floating around the sewing room--loose buttons, pieces of hardware, etc.
They are not magnetic, but a magnet could be added to the bottom. The lid is clear plastic.