Necklaces / Pendants by Carla Edwards This necklace has an adjustable catch and can be worn at a length of either 17 or 19 inches. Features Primary Material : resin Other Materials : oxidised silver Length (inches) : 17 and 19 One of a Kind : Yes Hallmarked : No Cleaning InstructionsClean items gently with warm water and a soft, old toothbrush, a little washing up liquid can be used if needed. Avoid contact with perfume, hair products, abrasive cleaning products etc. To keep pieces in top condition I recommend that items are stored in the box and acid free tissue they arrive in. It is not recommended that pieces are kept next to other jewellery items or in direct sunlight.