Hydra Snake Black Cord Necklace by Alchemy Gothic. A large triple serpent necklace in symmetrical form made of antiqued and polished pewter with genuine red Swarovski crystal eyes. Comes on a double black braided cord necklace with pewter end caps, connected by a lobster claw clasp, adjustable. From Greek mythology and the Labors of Heracles, the entrance to the Underworld at the lake of Lerna was guarded by the dreaded giant, a many headed water serpent called Hydra. Width 2.09" x Height 3.90". Made of lead-free fine English pewter exclusively by Alchemy Gothic.