- Round Ball Design: Experience a sophisticated touch with a sleek, polished brass finish that offers a mirror-like shine. The ball-shaped door knob not only enhances the visual appeal of your space but also provides a comfortable grip for an enjoyable tactile experience. - Reliable Material: Crafted from high-quality materials, this door knob exceeds ANSI/BHMA Grade 3 certification. Its electroplated finish offers water resistance, while the sturdy construction ensures durability and reliability for years of use. - Keyed Entry Function: This door knob features a dual-sided locking mechanism, with one side operated by a key and the other by a turn-button. It is perfect for securing front doors, office entrances, and bedrooms, providing versatile safety options. - Standard Dimensions: Designed to fit standard-sized doors, it accommodates door thicknesses of 35-45mm (1-3/8" to 1-3/4"). The adjustable latch can be configured to a backset of 60 or 70 mm (2-3/8" or 2-3/4"), ensuring a perfect fit for your door. - Effortless Installation: Enjoy a straightforward assembly process using just a screwdriver, making installation quick and user-friendly. The reversible design of the door knob is suitable for both right and left-handed doors, offering added convenience. Use Scenarios: 1. Secure your front door while complementing your home's exterior with an elegant touch. 2. Enhance privacy and security in your office space, ensuring easy access for authorized personnel. 3. Upgrade bedroom door hardware with this stylish and functional option for added security and ease of use.