Shirt button or coat button with 2 holes you can scale it to your original button size (initial file at Ø 100mm)
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/https://fbi.cults3d.com/uploaders/12878886/illustration-file/9f2f7884-4930-4823-a124-4af99775889b/Bouton%20de%20chemise%20-%202%20Trous.png)