Your Brushed Nickel Silver and Polished Chrome Palm Tree Door Knocker was designed by Michael Healy, an accomplished Rhode Island artisan known for his unique Door Knockers. The Palm Tree has long been a symbol for peace and relaxation making it an ideal image to display on your front door. Nickel Silver is an alloy that has a warm silver color which is attained by adding nickel to bronze. Michael combines a high polished finish with brushed accents to generate a contemporary look. A stainless steel brush on a high speed lathe is used to create the brushed effects. The mirrored finish of polished nickel silver is achieved through varying degrees of sanding and buffing. Michael uses these techniques to highlight or accent the raised areas on a piece.