PRIVACY 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 needs. EASY INSTALLATION: No need for professional door fitters, you just only need a screwdriver to quickly complete the installation! PREMIUM MATERIAL: Heavy-duty door handle is made of premium quality Aluminum Alloy and brass parts to rust-free in a high humidity environment. The thickened solid handle combined with high-quality materials is extra . VERSION UPGRADING: The of our door handles adopts electroplating process instead of the powder coated or painted 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 room. ADJUSTABLE : Black door knob has an adjustable universal , 2-3/8Inch (60mm) or 2-3/4Inch (70mm). This door lever fits 1-3/8Inch (35mm) to 1-3/4Inch (45mm) doors. Dimensions: Lever Length: 4.84Inch (123mm), Rosette Diameter: 2.4Inch (61mm) (Notice: The plate is unremovable), Weight: 1.2456117803 Pounds, Manufacturer: Xuzxinze