Reversible open tiny opal hoop earrings. Fuss-free earrings to put on, hook and go! Material: 925 Sterling Silver. Bello Opal. Nickel free. Suitable for sensitive skin. Quantity & Measurement A pair of white opal huggie earrings Opal size: 3mm Inner diameter: 7mm Outer diameter: 9mm Gauge 20 or 0.9mm Gold : 18 Karat Gold over eco brass