Anne Koplik Jewelry - Fabulous Heart, Key and Padlock Charm Necklace with Swarovski Crystals! Chain is a 22k gold plated chain. Necklace fastens with a solid lobster claw clasp in the back an is adjustable from 20 to 22 inches in length. A stunning gift item she will adore for years! Made in the USA. Trademark Anne Koplik Designs.