Cufflinks by Sarah Packington Square clear acrylic cufflinks with a red fleck pattern. Designed and handmade by jewellery designer Sarah Packington. Features Primary Material : acrylic Other Materials : silver Fitting Type : hinged bar Dimensions (mm) : 20x20x5 One of a Kind : No Hallmarked : Yes Cleaning InstructionsClean with a mild detergent and soft cloth, or use a 'silver cloth'. Do not spray with perfume or aftershave. Do not use alcohol based cleaners.