The non-allergenic wedding earrings are made with pure medical-grade titanium, making them waterproof, non-tarnishing, and safe for sensitive skin. The lightweight drop earrings feature a large gemstone and fish hook back, allowing for comfort and elegance for every occasion SPECS BASE METAL: Titanium ASTM F-67 COATING: Titanium Nitride PVD OTHER MATERIALS: Cubic Zirconia STUD DIAMETER: 12mm HOOK THICKNESS: 21G (0.8mm)