VERSION UPGRADING: The surface of our door handles adopts electroplating process instead of the powder coated or painted surface of other products, which is been designed with strength and durability for a long time use; No noise when twisting the handle; It also gives you a smooth touch and enhances the beauty of your room; Contemporary square Matte Black design will fresh your home. PREMIUM MATERIAL: Heavy-duty door handle is made of premium quality zinc alloy and brass parts to ensure 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 items. PASSAGE DOOR HANDLE: Keyless passage door lever could be opened from inside and outside without keys; This passage door lever can be used for the room of easy-opening needs, like closets, hallway, nursery room, study room and other interior doors requiring no locking functionality. EASY INSTALLATION: No need for professional door fitters, you just only need a screwdriver to quickly complete the installation; Installation instructions included help you install it in minutes; All Plustool door handles are reversible and can be installed left-handed or right-handed. ADJUSTABLE LATCH: This passage door knob comes with an adjustable universal latch2-3/8" or 2-3/4"(60mm or 70mm) to fit all standard doors from 1-3/8" to 1-3/4" (35mm-45mm) thick; Dimensions: Lever Length: 4.84" (123mm), Rosette Diameter: 2.4" (61mm) Notice: The latch plate is unremovable.