The Tudor Collection Knowle Door Knob on Rose Smooth Black Iron has a classic oval shape making it comfortable and easy to grip. Smooth Black Iron Handle The smooth black iron finish does not have deep surface indentations like many other black finishes - this gives it a more modern feel. It is made from malleable cast iron, treated with a zinc phosphating process and then powder coated to provide a durable finish. Matching Accessories for the Knowle Door Knob Please note – when purchasing locks and latches to us with this knob we recommend that they have backsets no smalle...