Let your guests announce their arrival in style with the Frank Lloyd Wright Tree of Life Door Knocker in Antique Copper finish. The door knocker is sure to enhance your doorway and make a lasting a first impression. The inspiration for this solid brass door knocker is an art glass window in the Darwin D. Martin House (Buffalo, New York, 1905). Solid brass with a antique copper finish. Dimensions: 7.5" H x 3.2" W x 1" D. Comes with mounting hardware and instructions.