Earrings by Miranda Sharpe Features Primary Material : silver Other Materials : vitreous enamel Fitting Type : Post Dimensions (mm) : 6x6x3 One of a Kind : No Metal : silver Hallmarked : No Wire Material : sterling silver Cleaning InstructionsUsing warm soapy water with an old toothbrush should be sufficient to clean these earrings. Solutions such as silver dip can be used. It is recommended that the solution be applied sparingly with an old toothbrush or cotton bud to silver areas only, contact with the enamel may affect its surface. Ensure they are rinsed and dried thoroughly afterwards. A standard silver cloth may also be used but please be aware that it will increase the shine on satin areas of silver.