No problems. But I think they run small. I had 5mm when I bought them but they were loose so I used 6mm instead. I have attached a photo when I first inserted 6mm, there is no redness. either I thought I had 5mm but it's actually 6mm, or they're too small. Both options are possible as I have not personally measured my jewelry. Neither option bothers me because I intend to go down to 10mm. If something bothers you, I would suggest checking the dimensions yourself. They were packed VERY well too. Lost times when buying such a set, sizes are not explicitly listed. I actually left these bags to store my other jewelry. UPDATE: They do slip a bit, but the O-ring on the back takes care of that.
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