The Passage door levers are made of solid zinc alloy, they will give your interior doors a special refinement, bringing solidity, sophistication and pleasantness to your sensations due to their perfect design and high quality! FUCTION: Designed for doors inside the house, the interior passage knob offers reliable closure but without a locking feature, making it a common choice for a room that doesn't require privacy, like a closet, utility room, or hallway. Durable Material: All metal construction, zinc alloy door levers, square mounting plate, heavy-duty springs, and adjustable brass latch. The electroplated finish makes the cabinet door knobs anti-rust and anti-corrosion, ensuring years of durability and longevity. Specifications: Lever Length: 123mm; Rosette dimension: 66mmx66mm Adjustable Latch center margin 60mm/70mm suitable for door thickness 3550MM: The latch plate is square, and can't removable. Note: The renderings are for reference only, the actual product shall prevail. If you mind, please do not place an order. TYPE: A-1 x channel lock door kit Material: zinc alloy colour: black Package Contents: 1 x channel lock door kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.