The Portland Hoop Earrings measure approximately 36mm and 10mm in width in diameter and width, respectively. This style, named after Portland, Maine – the maker's hometown – is one of our largest, yet it is still remarkably lightweight and comfortable to wear. These earrings come in lots of color options & a frosted finish. They are crafted and finished in the US, using vintage lucite parts from the 1960s-1980s from renowned manufacturers such as Best Plastics and Coro, Avon, and Haskell. The posts and backings of the earrings are made of sturdy surgical steel and acrylic.