"Air-tite" holder question...

I am going to build something fancy to showcase a Liberty Bronze Medal set. I'd like to use an "Air-tite" type of capsule and am having trouble choosing the correct size. The medals are 1 5/16" in diameter. Do they make capsules this size? Is this the same size as a First Spouse Gold $10 or a 1/2 eagle or what? Thanks for any help!

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The "ring-style" air tites come in 34mm, according to wizardcoinsuply.com. Should be perfect.
Lance.