These dangling earrings are like a burst of springtime joy with their vibrant zircon stones. They have a post at the back closure.- Sterling Silver with rhodium plating and 925 hallmark- AAA+ quality zircons- Rhodium e-coating to prevent tarnishing- Perfect for sensitive skin- To keep a long-lasting shine, do not expose to prolonged heat, water, and moisture- Do not wear while swimming or showering- Comes with authenticity certificate