The Nantucket Basket 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 Nantucket Basket Door Knocker was designed by Michael Healy, an accomplished Rhode Island artisan known for his truly unique Door Knockers- Michael believes that your Door Knocker should reflect your individuality and personal taste- The Nantucket Basket, with its classic simplicity, captures the essence of a peaceful life by the shore-Specifications- Material Brass- Dimensions 3-75 H x 2-5 W x 6 L SKU: MCHD036