This labret has a beautiful 14-carat gold flower stud. The flower has five small gemstone petals, with a gold ball centre. The stud fits into a bio-plast bar. Bio-plast is a bio-compatible plastic, perfect for people with metal allergies. Additionally, bio-plast is slightly flexible, which makes it very comfortable to wear. Although people typically wear labrets in lip piercings, you can also wear them in other piercings. These labrets are 16 gauge/ 1.2 mm thick, which will fit ear cartilage piercings. Such as: tragus, flat and helix. Another advantage of bio-plast is that you can cut it to any size, so they will also fit perfectly.