Built to last. metal construction with rolling deadbolt technology, anti-pick, anti-drill, anti-bump. Spinning cylinder deflects saw blades, extending break-in time by 95%. ANSI 3 certified, tested to 25,000+ cycles. Smooth operation, reliable performance. Easy installation. Everything . No drilling. Just a screwdriver—15 minutes, done. Reversible handle fits left or right doors. Adjustable latch and reinforced strike plate . 3 precision keys per lock. Perfect for bedrooms, offices, workshops, front doors. Precise 3-Piece Keys for Everyday Access: Lock or unlock from outside with the key, or quickly secure the door inside with the twist knob. Perfect for front doors, back door, home offices, bedrooms, and workshops, giving you reliable control when leaving home, letting guests in, or locking up at night Full-Spectrum Active Protection: Built with metal and alloy lever, with anti-pick, anti-drill, and anti-bump protection. Rolling deadbolt technology spins saw blades, stopping cuts, Blocks break-ins 95% longer. ANSI 3 certified, 25,000+ cycle tested and built to last, reliable for your home doors Fits Standard Doors Without Hassle: Designed for most standard interior and exterior doors: 2-1/8" (54mm) bore hole, thickness 1-3/8"–1-3/4" (35–45mm), with adjustable backset 2-3/8" or 2-3/4" (60mm or 70mm). Ideal for upgrading old door handles in homes or rental properties without worrying about fit Different Keys: 1-pack locks use different keys to provide for different spaces. Each pack contains 3 keys 15-Minute DIY Installation: No drilling required for standard doors. Step-by-step instructions and a video tutorial make it easy to replace your old handle in minutes. All you need is a screwdriver, making it fast, smooth, and perfect for homeowners or landlords doing a quick upgrade -Based & 2-Year : 's -based team is ready to assist with (Mon–Fri 9 AM–5 PM | Sat 7 AM–3 PM PST) and 24/7 help. Includes a 2-year on the lock and maintenance for mechanical parts, giving peace of mind for years of daily use