Silver Heart and Seahorse Lariat Style Necklace. Antique Silver Charms Nickel & Lead Free Charms. Silver Plated alloy chain, Necklace length . Necklace clasps with secure Lobster Clasp. The Heart is 5/8" in length and Seahorse is 1-1/4". Please dont wear this necklace during swimming. Please dont use any liquid cleaner, just a cloth cleaner.