This necklace is 22k Gold or Silver plated on brass. Plated jewellery has the same quality as fine jewellery, however, with time, the plated layer will wear off. For that reason, we apply a layer of clear resin to prolong its durability. At least 50% of the brass we use in jewellery making is recycled. Size: 18". Hypoallergenic, nickel-free, hand made brass. Care instructions: Keep jewellery dry. Be careful with fragrances; apply lotions and potions before jewellery. Limit exposure to direct sunlight. Store jewellery in a cool, dry place.