Brass Butterfly Door Knocker - Nickel Finish Complete with Fixing Screws . Our beautiful butterfly is certain to bring a smile to everyone who arrives at your front door, the copyrighted Butterfly door knockers are all hand made from solid brass and crafted using traditional techniques. . The Butterfly's unique and beautiful shape designed by us at Brass bee features a beautiful finish, detailed wings and elegant stripes running across the body and wings. The wings of the butterfly are attached to the body which can be lifted to create the perfect knock on your front door. . Approximate Dimensions Butterfly: Width 'wing to wing' - 13cm  Height - 10.