A very ornate and decorative pair of unsprung solid door knobs, reproduced from a Georgian original. Perfectly suited to restore period properties or town houses to create a genuinely traditional feel. Suitable for Mortice only. Not for use with Rim locks. Please note this product is also available in unlaquered brass. They have 8mm x 140mm spindle to take adjustment for various door thickness. For best results the centre of the knob should be a minimum of 3'' from the edge of the door. Heavy Duty latches 4'' or 5'' are recommended for maximum efficiency. Supplied with necessary fixing screws.