The listing is for a pair of the earrings, complete with sterling silver butterfly backs. Dimensions: 4 mm. Materials: these silver earrings are made with sterling silver and coated with Rhodium. They are hypoallergenic. Production Method: Small Batch lost wax casting. ------------------------------------------------------- ♥ Packaging: All our jewellery comes with our branded velvet bag so your item is ready to be gifted ♥ To read more about our production process visit our blog: https://www.silverrainsilver.com/blogs/production-methods/production-method-1-lost-wax-casting ♥Instagram: silver_rain_uk