This privacy knob/lever is best used in interior bedroom and bathroom applications where privacy is required. Both knobs/levers are operated by the thumb turn on the inside. The outside knob/lever is unlocked by an emergency key. Emergency opening by inserting a flat piece of metal in slot in outside knob, no key required Adjustable backset with universal latch fits 2-3/8-in or 2-3/4-in Easy installation with a Phillips screwdriver Limited lifetime warranty Collection Name: Gallo Color/Finish Family: Stainless steel Hardware Finish: Satin Manufacturer Color/Finish: Stainless Steel Type: Privacy door knob Backset Size: Adjustable Bore Size: 2-1/8-in Edge Bore Size: 1-in Fits Door Thickness: 1-3/8-in to 1-3/4-in Projection Measurement: 2-3/8-in Antimicrobial: No Commercial/Residential: Residential For Use with Bed/Bath: Yes For Use with Entry Door: No For Use with Hall/Closet: No For Use with Mobile Homes: No Interior/Exterior: Interior Latch Style: 6-way adjustable latch Lock Type: Turn Material: Zinc Number of Cylinders: 0 Package Quantity: 1 Package Type: Single pack Projection (Inches): 2.375 Shape: Tulip Style: Traditional Total Number of Pieces: 1 Warranty: Limited lifetime ANSI/BHMA Security Grade: Grade 3 (Good) CA Residents: Prop 65 Warning(s): No UNSPSC: 31162800