OverviewElevate interior spaces with Estmoon's matte black passage door knobs. This 4-pack delivers a clean, contemporary look paired with a sturdy, non-locking lever designed for easy access in busy areas like hallways, closets, and meeting rooms. The durable construction and refined finish help maintain a cohesive aesthetic across interior doors without sacrificing practicality.Premium build and finish crafted from high-quality zinc alloy for resilience in humid environments and a thick, solid lever that communicates durability. The matte black finish minimizes smudges and fingerprints, while the profile feels substantial in hand, adding a touch of modern style to any door. Premium quality door hardware with corrosion resistance Matte black finish that stays clean and stylish with daily use Operation and durabilityThe upgraded lever uses an electroplated process for stronger adhesion and longer wear than painted surfaces. The twist operates smoothly with near-silent action, supporting quiet transitions between spaces without compromising accessibility. Non-locking passage function ideal for spaces requiring easy access Quiet, smooth operation with almost zero noise Fit, install, and careEasy installation with a screwdriver. The lever fits doors 1-3/8 to 1-3/4 inches thick and is reversible for left or right handed doors. Note: the latch plate is non-removable, so please confirm door size and hole spacing before purchasing.For modern interiors, these knobs pair well with other Estmoon hardware to create a cohesive look across hallways and storage spaces. A practical upgrade that blends form and function in everyday use.What you get 4 x Estmoon Matte Black Passage Door Knobs Mounting hardware and screws included Reversible design for left or right handed doors Customer support is prompt, with a 24-hour response window if you need assistance and a warranty option. Always verify door thickness and hole spacing to ensure a proper fit. FAQ Q: What doors are Estmoon 4 Pack Passage Door Knobs best suited for? A: Interior doors like hallways, closets, offices; non-locking design keeps spaces accessible while preserving quiet. Q: Is installation difficult? A: Not at all—requires only a screwdriver, fits standard 1-3/8 to 1-3/4 inch doors, reversible.