Necklaces / Pendants by Gill Forsbrook Pale pink double circle and silver pendant on a black oxidised silver cable with bayonet clasp.The larger of the two circles measures 16mm in diameter. Features Primary Material : silver Other Materials : plastic Length (inches) : 16.5 One of a Kind : No Hallmarked : No Cleaning InstructionsClean the plastic by gently wiping with a soft slightly damp cloth or cotton wool. Shinny silver can be gently cleaned with a Silver Polish Cloth, taking care not to mark the plastic. The black oxidised silver cable has been treated with a chemical solution to produce the black finish. This finish can wear away over time particularly in exposed areas which adds to the character of the piece. If needed clean the oxidised silver by gently wiping with a soft damp cloth but avoid using silver dip or a silver cloth on the oxidised silver as this will remove the oxidisation. As with all jewellery avoid spraying with perfume and hairspray and do not immerse in water.