Privacy door knob with keyless design for bedrooms and bathrooms where locking is required. Inside features a push-button lock; simply press to lock, turn the knob to unlock. Outside is keyless, but you can insert a hex key into the release hole to open the door. Premium door handle: Modern square profile built from zinc alloy and stainless steel. ANSI Grade 3 security. Exceeds 200,000 cycles. Satin brass finish. Heavy-duty, durable, wear-resistant and anti-corrosion. Well-engineered and built to last. Simple and easy installation: Includes a detailed instruction guide with a door hole marking template. Fits both right- and left-handed doors and works on most standard prepped doors. Packaged individually to ensure safe delivery. Adjustable latch fits door thickness from 1-3/8" to 1-3/4" (35-45 mm); adjustable latch 2-3/8" or 2-3/4" (60 or 70 mm). Beautiful and functional: An excellent choice to upgrade interior doors. The beautiful finish, functional design, and solid construction provide strong value. You will experience exceptional quality and performance. Use scenarios: - Replace aging privacy hardware on a master bedroom or main bathroom door. - Upgrade interior doors in home office or guest rooms for reliable privacy. - Cohesive update for interior doors when refreshing hardware across a home.