The Hospitality Pineapple Door Knocker is cast in Solid Brass and designed by Michael Healy, an accomplished Rhode Island artisan- 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 Pineapple is a traditional symbol of abundant hospitality, making it an ideal image for your homes front door-Specifications- Material Brass- Mounting screw center to center distance 5 316- Dimensions 4-5 H x 2-5 W x 8-5 L SKU: MCHD033