This cab topper is wound right onto a nut that is designed to fit interchangeable ring or pendant blanks utilizing a 2.5mm threaded shank. You simply purchase one ring and/or pendant, and then change the toppers to match your mood.
THIS LISTING IS FOR THE TOPPER ONLY. RING NOT INCLUDED!! A number of sellers manufacture or carry the rings and pendants you need to wear these interchangeable toppers, but my favorite is the Etsy seller littlecastledesigns. :-)