Seahorse Doorknocker with Verdigris Patina, Cast Iron, 5.5" Tall Nautical Seahorse door knocker. Made of cast iron with a verdigris finish. Measures 5.5" high x 1.75" wide x 1.5" deep. Easy to install with 2 pre-drilled holes at top and bottom. (Hardware not included.) The perfect finishing touch to your nautical decor!