Aircraft-Grade Titanium - Crafted from hypoallergenic G23 implant-grade titanium. Anti-corrosion & nickel-free, perfect for sensitive skin with 24/7 comfort. Standard Sizing - 1.2mm (16G) standard gauge with 6mm length options. 3mm CZ accents fit lip/helix/tragus piercings perfectly. Threaded Innovation - Patented internal threading for secure, tool-free installation. Beginner-friendly one-twist locking system. Reversible Style Convertible design - wear the faceted CZ side for daytime elegance or flip to heart-shaped dazzle for nights out. Worry-Free Guarantee - Triple-inspected quality with piercing expert support. Contact us anytime for assistance. 14K Gold Plated Titanium Flat Back Stud Earrings 16G Medusa Labret Jewelry Internally Thread Lip Stud Surgical Steel 6MM Helix Tragus Conch Cartilage Earring for Women