The Triple Moon symbol, which represents the three phases of the lunar cycle (waxing, full, and waning). It symbolizes the divine feminine and the Maiden, Mother, and Crone aspects of the goddess, representing youth, fertility, and wisdom, respectively. 
This is a super top quality precision piece of threadless jewellery made from ASTM F-136 titanium. The 'full moon' is a small real opal at 2mm across then entire piece is 6mm wide. This threadless piece comes with a 6mm bar also made from titanium. 
Unless clearly stated otherwise,
 the price is for one piece, not a pair.