Moon Screw Back Barbell Earrings in Sterling Silver, Silver or Gold or Rose Gold, Tiny Moon Screw Back Earrings, Celestial Earrings, Sold as a pair. Dimensions : 5 mm moon. 6mm post length. 4mm balls. Materials and Care: These are made of sterling silver with the option of 18ct gold coating or 14ct rose gold plating. Only precious metals are used and they are hypoallergenic. They are tarnish resistant but please keep in a sealed plastic bag when not wearing. Stamp: 925 SRS ( our brand initials for Silver Rain Silver). Packaging: All our jewellery comes with our branded velvet bag so your item is ready to be gifted. Production Method: Small Batch lost wax casting. More details about our production method https://www.silverrainsilver.com/blogs/production-methods/production-method-1-lost-wax-casting Instagram: silver_rain_uk