Polished chrome entrance door knob with interchangeable switches for customized functionality. Enhanced Security: The ANSI Class-3 security switch from BUTLU provides added protection for your front door, office, or bedroom, ensuring peace of mind. Versatile Fit: The steel square corner adjustable latch accommodates backsets of 2-3/8" or 2-3/4", making it suitable for a variety of door configurations. Universal Compatibility: Designed to fit doors with a thickness of 1-3/8" to 1-3/4", ensuring a seamless upgrade for most standard doors. Simple Installation: Easily replace your existing door knob using only a Phillips screwdriver. Installation instructions are included for a hassle-free experience. Durability Assurance: Backed by a limited lifetime mechanical warranty and a 2-year coating guarantee, this door knob is built to last and maintain its polished appearance. Use Scenarios: - Perfect for upgrading the entrance to your home for enhanced style and security. - Ideal for office spaces requiring reliable access control and professional aesthetics. - Suitable for bedroom doors, providing both functionality and a modern look. Choose this polished chrome entrance door knob for a blend of security, style, and ease of installation, making it an essential addition to your property.