This set of spare door knobs are constructed with genuine porcelain and finished in an attractive polished brass. Each knob measures 2 1/4 inch in diameter with a 2 3/8 inch projection. These beautiful knobs are wonderful to use as replacements for broken knobs or can be used with a variety of back plates. Comes complete with spindle (note: no additional mounting hardware or installation materials are included). Available in Polished Brass, Antique Brass, Oil Rubbed Bronze, Polished Chrome and Brushed Nickel.