Pirate Ship Skeleton Jail Keys Set - Cast Iron Costume Prop This Set of Jail Keys looks and feels like the keys from a pirate ship! Keys are Made from cast iron, with a great rustic finish! Set of Jail Keys is authentic- even has that erie clanging noise when you shake the keys! These Keys are Great Pirate Ship Jail Decor- put them in your bar, use them for a prop, or just hang Keys measure 8 " from the top of the ring to the bottom of the longest skeleton key.