Emtek 8135 Crystal Knobset with Wilshire 7″ Non-Keyed Sideplate Lockset, Passage Set Can be ordered with any Brass Knob or Lever Style for same price Sold as complete set. Includes Levers (or Knobs), Latch and Strike Plate One Standard 2-1/8″ Door Prep Standard latch is for 2-3/8″ backset. Specify 2-3/4″ backset if required Handing required for Leversets only Specifications:Backset: Adjustable 2-3/8″ or 2-3/4″Cross Bore: 2-1/8″Door Thickness: 1-3/8″ to 1-3/4″Latch Faceplate: Round or Square CornerMaterial: Brass