Reminiscent of the Northern Lights! These lovely plugs are handmade of glass and feauture a beautiful coating that reminds us of the Aurora Borealis. The plugs are double flared, so no o-rings needed to keep these beauties in place! Glass is a wonderful material for piercings. Glass is very comfortable and easy to clean. But do handle your glass piercing jewelry with care and don't wear these plugs while showering or sleeping. These glass plugs are available in sizes from 2 mm up to 30 mm, perfect for stretched earlobes!