PREMIUM MATERIAL: Heavy-duty door handle is made of premium quality zinc alloy and brass parts to guarantee rust-free in a high humidity environment. The thickened solid handle combined with high-quality materials is extra durable. Each modern door lever is individually packaged to avoid scratches due to direct contact between itemsPRIVACY FUNCTION: The privacy door lock can be locked by twisting the button inside and opened outside in emergency WITHOUT keys(use a coin or screwdriver). Interior door handle provides excellent security and privacy and is commonly used in areas such as guest rooms, bedrooms, bathrooms, interior locking doors and other privacy needsEASY INSTALLATION: No need for professional door fitters, you just only need a screwdriver to quickly complete the installation! Installation instructions included help you complete it in a flash. All door handles are reversible and can be installed left-handed or right-handedVERSION UPGRADING: The surface of our door handles adopts electroplating process instead of the powder coated or painted surface of other products , which has more adhesion for long-lasting product life. Square door handles feature a minimalist line design and a matte black finish to suit most home decor styles. It also gives you a smooth touch and enhances the beauty of your roomADJUSTABLE LATCH: Black door knob has an adjustable universal latch, 2-3/8"(60mm) or 2-3/4"(70mm). This door lever fits 1-3/8"(35mm) to 1-3/4" (45mm) doors. Dimensions: Lever Length: 4.84" (123mm), Rosette Diameter: 2.4" (61mm) (Notice: The latch plate is unremovable)