The Kirkpatrick 3067 Ball Door Knob on Rose Black Antique has a classic round shape, giving it fantastic ergonomics - it sits very comfortably into the palm of the hand.  The door knob is made from malleable iron and has a black antique finish. It requires little to no maintenance and can best be kept clean using warm soapy water and a soft cloth. In the event of chipping occurring the affected area can be cleaned, wiped dry and filled in with black enamel paint. For use externally more care needs to be taken to maintain the knobs in pristine condition and a ligh...