This barbell is a piercing stud that you can use in many places! In any case, it is an eye-catcher, especially because of its unmistakable shape, and its individual design will show it off to its best advantage.
Roseline® is coloured jewelry, they are not "colored" in the classic sense, it is 316L Steel or Titanium that is covered with a thin plasma film (PVD coating). The thin film is very strong and does not fade. The technology has been used since the late 80's and is used, among other things, for orthopedic implants to provide an extra durable surface.