Here's a shot of one of my nipple rings(they're glass). It's 2 gauge(6.3mm/.25"). Sorry the pic is so big.. The other is the same. I have had these rings for a few months now and my nipples have been pierced since about '98. My lip was pierced(8g) for a few years too so that hole is still open(I don't wear jewlery there anymore). Lemme know what ya think..