Necklaces / Pendants by Gill Forsbrook Silver pendant with one blue polypropylene circle and one slightly lighter blue polypropylene circle on silver necklet with bayonet catch. Larger circle measures 16mm in diameter. Designed and made by Gill Forsbrook Features Primary Material : silver Other Materials : polypropylene One of a Kind : No Metal : silver Hallmarked : No Length (inches) : 16.5 Cleaning InstructionsClean plastic by gently wiping with a soft slightly damp cloth or cotton wool. Silver can be gently cleaned with a Silver Polish Cloth, taking care not to mark the plastic. As with all jewellery avoid spraying with perfume and hairspray and do not immerse in water.