Mix and match with these irritation-free flat backs in heart, flower, and plain gold styles. Crafted from gold-plated surgical steel, they're both stylish and allergy-friendly. Material: Gold Plated, Surgical Steel Colour: Gold, Pink Gauge: 18 g / 1.0 mm PVD Plated: This piece features PVD Plating. PVD Plating provides a durable, waterproof coating that enhances the shine and lifespan of our waterproof pieces! Dimensions: Total Length: 7 mm Post Length: 6 mm