Earrings by Sarah Packington Stud earrings made from a polished acrylic hollow dome, dyed on the inside only to give an interesting optical effect. Features Primary Material : acrylic Other Materials : silver Length (mm) : 11 Fitting Type : Post Dimensions (mm) : 11x11x5 One of a Kind : No Metal : sterling silver Hallmarked : No Wire Material : silver Cleaning InstructionsClean with a mild detergent and soft cloth, or use a 'silver cloth'. Do not spray with perfume or use alcohol based cleaners.