Classic Disc Low Profile Entryway Set with Crystal Octagon Knob (Several Finishes Available) - comes complete with the mounting hardware. Available in Flat Black, Satin Brass and Oil Rubbed Bronze finishes. Multiple sets can also be keyed alike upon request. Comes with a standard 2 3/8 inch backset, a 2 3/4 inch backset is available as an option. Single Entryway doors use the deadbolt system shown - double doors need a double sided dummy set for the second door.