Earrings by Donna Barry Designed and handmade by Donna Barry, these new Sterling silver studs are easy to wear and can be dressed up or down for any occasion. Features Primary Material : silver Fitting Type : Post Dimensions (mm) : 10 x 10 x 5 One of a Kind : No Metal : silver Hallmarked : No Wire Material : silver Cleaning InstructionsPlace earrings in silver dip and leave for just a few seconds. Leave longer if badly tarnished. Then, rinse well with warm water. Using a soft toothbrush and fairy liquid, brush the silver all over. Rinse thoroughly and dry using a hair dryer. This will reduce any silver dp residue or water stain.