EASY INSTALLATION - REVERSIBLE DESIGN. Reversible interior door knob for left-handed and right-handed doors. Includes all installation hardware and instructions. Easy to install with a screwdriver in minutes, perfect replacement door knob for existing interior door hardware ADJUSTABLE - FITS STANDARD DOORS. Adjustable fits 2-3/8" or 2-3/4" backset. Compatible with standard door thickness 1-3/8" to 1-3/4". This interior door knob fits most residential interior doors. (Note: plate is non-removable) PRIVACY FUNCTION - KEYLESS INTERIOR DOOR KNOB. This privacy door knob is designed for bedrooms, bathrooms, and interior rooms where privacy is The interior door knob features a thumb turn lock inside and an emergency release outside that can be opened with a coin or flat screwdriver. No key required WIDE APPLICATION - MODERN BLACK DOOR KNOB. Modern black door knob complements contemporary and traditional décor. Perfect for bedroom door knob, bathroom door knob, door knob, and other interior door hardware needs. Each door knob is individually packaged to prevent scratches during shipping, Manufacturer: Jnchdghwa