Wire Bow Stud Earrings. Designed with sleek, lightweight wire in a delicate bow shape, these studs are perfect for everyday wear or subtle elegance. The titanium posts ensure durability and hypoallergenic wear, making them suitable for sensitive ears. Hypoallergenic post Surgical steel post Lightweight post Durable post Product details: width: .5" length: 1" earring back: Titanium Post metal finish: gold Plating product: Lead & Nickel Compliant anti-tarnish: Double E-coating