I have my belly button double-pierced and the bottom ball of the bottom piercing always seems to come loose and falls off so I bought three packs of these (so I have a spare in each color). I read thru the reviews which were mixed-some had no issues with the "anodizing", others had major problems,  so I decided to take my chances.

I lost. All three packs had multiple piercings that had flaked already before I opened the little Ziploc baggies. I've had other anodized piercings that never flaked, instead would always gradually wear. These seem like they're just painted with paint.

Disappointed,  returned all three packs right away.