Official Harry Potter Dobby the House Elf Necklace Dobby the House-Elf Charm on a silver plated necklace This charm has been created using the official style guide from Warner Bros. It is approx 6mm x 25mm. The Necklace is a silver plated snake chain which is 16 inches in length with a 2.5 inch extender chain This charm comes on the official Harry Potter branded card packaging and shows the Warner Bros logo on the reverse. This charm is compatible with our other Harry Potter slider charms, necklaces and bracelets. The Carat Shop are the official licensed manufacturers of Harry Potter Jewellery on behalf of Warner Bros.