The flat ball design keyed entry doorknob combines a comfortable grip with a polished brass finish that adds a bright, mirror-like gold touch to any door. The smooth surface and flat ball shape provide a pleasant tactile experience. Key benefits - Comfortable grip and tactile feel thanks to the flat ball design - Distinct polished brass finish with a bright mirror-like gold color to enhance door aesthetics - Reliable material that exceeds ANSI/BHMA Grade 3 certification - Electroplated finish delivers water resistance for everyday use - Sturdy construction designed for extended operation Key features - Keyed entry for security on front doors, offices, and bedrooms where controlled access is needed - Standard door compatibility: fits doors with thickness 35-45 mm (1-3/8" to 1-3/4") - Universal adjustable latch with backset options of 60 mm or 70 mm (2-3/8" or 2-3/4") - Easy installation with only a screwdriver required - Reversible knob suitable for both right-handed and left-handed doors Use scenarios - Replacing a front entry knob to improve security and curb appeal with a durable, stylish finish - Installing on an office door that requires a keyed lock for privacy and access control - Upgrading a bedroom door where security is desired without compromising interior aesthetics This knob is delivered as a complete keyed entry solution with straightforward, tool-only installation and a reversible design, ensuring compatibility across a range of standard doors and configurations.