SIZE: 18'' + 3'' Extender Chain Hypoallergenic, Nickel Free, Hand Made Brass, Hand Cut Glass Stones, Surgical Steel Posts Aura Mini Allure Stone Cut Plated Brass Belcher Chain Necklace With Lock Keep jewellery dry. Be careful with fragrances; apply lotions and potions before jewellery. Limit exposure to direct sunlight. Store jewellery in cool, dry place.