Earrings by Donna Barry Features Primary Material : silver Fitting Type : Post Dimensions (mm) : 9x8x1.5 One of a Kind : No Hallmarked : No Wire Material : silver Cleaning InstructionsSilver dip, then rinse and brush with a soft tooth brush with hot water and fairy liquid. For best results, dry earrings with a hair dryer. This will avoid any silver dip residue or water stains.