Internally Threaded Titanium Flat Back Post is designed to create a secure, comfortable foundation for your everyday ear stack. Simple and practical, it is perfect for daily wear. Crafted from certified ASTM F136 implant-grade titanium, it is lightweight, hypoallergenic, and ideal for sensitive ears. Our internally threaded flat back design ensures a secure, comfortable fit - no poking, no snagging - making it perfect for all-day wear, including sleeping, showering, and stacking with your favorite pieces. Includes 6mm Titanium Flat Back Posts | Sold as a Pair Post: 18 GA (1mm) | Length: 6mm / 8mm Earring top: not included Material: ASTM F136 implant-grade titanium Gold option: 18K gold PVD plating Internally threaded flat back for enhanced security Waterproof, tarnish-resistant & hypoallergenic