Cufflinks by Sarah Packington Cufflinks with a polished clear acrylic square section bar with scored black lines. On a polished silver swivel fitting. Features Primary Material : acrylic Other Materials : silver Fitting Type : hinged bar Dimensions (mm) : 20x15x15 One of a Kind : No Metal : silver Hallmarked : Yes Cleaning InstructionsClean using a 'silver cloth' or mild detergent a soft cloth.