(By:-MichaelHealy) This Doctor Nickel/Silver Door Knocker is part of the Classic Door Knockers series Brushed Nickel Silver Polished Chrome Height 8 0 in Width 2 0 in Depth 3 75 in All Michael Healy Door Knockers have been coated with a baked catalyzed polyurethane paint similar to the clear top coat on an automobile and should be cared for similarly Coating the Door Knocker with a paste wax will greatly extend the life of the finish Do Not use a brass cleaner or an abrasive pad this will damage the clear coating and the original polished finish - Buy Now or get More Info on Michael Healy Hardware - Click Here To Order