Threadless ends fit in any 16/18g threadless post. These can be purchased online or at your local piercer. This piece has been worn but is like new. It looks darker in person than in the photos. See website below for more info. https://www.buddhajewelry.com/products/garnet-prong-threadless-end?_pos=1&_sid=a3d8831d0&_ss=r