The Seahorse Door Knocker is sandcast in solid brass- Brass and bronze are copperbased alloys- The yellow brass alloy used in many of Michaels designs contains 70 copper and produces a warm, traditional brass look- Red bronze contains almost 85 copper- This additional copper content gives the bronze alloy its rich, reddish undertone- The mirrored finish of polished brass and polished bronze is achieved through varying degrees of sanding and buffing- Michael uses these techniques to highlight or accent the raised areas on a piece- The Seahorse Door Knocker is part of Michael Healys Unique Door Knockers collection- Michael is extremely fond of the ocean and its creatures- While scuba diving off the coast of Florida, he observed the endangered seahorse in its natural habitat- When back on land, Michael sketched an image of this Seahorse Door Knocker to remind him of this elusive sea creature-Specifications- Material Brass- Mounting screw center to center distance 1 58- Dimensions 4-5 H x 1-5 W x 6 L SKU: MCHD026