Overall these are good basic sterling silver earring caps. They say they're big, but in fact they're just regular-sized substrate. Most of us don't pay much attention to millimeter measurements. It would be more helpful if the seller included a picture of the earring on the back next to a 1 carat or half carat stud. Something to compare. Still a good substrate, just not as big as I would like, but I'll keep and use them anyway.
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