Dimensions of the earrings:- width/length: 4,7 cmType of closure: posts closure / butterflyMaterial: plated with a high quality silver alloyThe jewellery of UNO de 50 is non-allergic, nickel free and silver plated.To better display the jewels, please be aware that the photo may have been enlarged and or has been enhancedIf you have a question about this item, please don't hesitate to contact us.UNO de 50 is a Spanish brand whose core values are creativity and originality. These are reflected in their designs, their hand crafted jewels season after season.