KNOBWELL door knobs are proof-positive that fashion and function can peacefully and beautifully co-exist. From timeless elegance to striking modernity, our knobs fit and accentuate virtually any decor. Naturally, they're also designed, crafted and tested to ensure durability. Our Premium Quality Round-Styled door knob is an ideal decorative accessory, professionally designed to perfectly compliment a wide range of contemporary and modern residential and commercial interior doors. Black Round Door Knob With Matching Deadbolts(Double Keyed) The keyed entry function is ideal for exterior doors. Keyed entry door locks have a keyed cylinder facing the outside of the home that can only be opened with a key. The door lock you purchased is a combination door lock, including a keyed entry door knob and a deadbolt lock, and the deadbolt lock is a double cylinder deadbolt not a single cylinder deadbolt. The knob is operated by key outside and a thumb turn button inside, while the deadbolt is double keyed both outside and inside. Double cylinder deadbolt means that it needs keys both outside and inside. Please check whether you need a single cylinder deadbolt or a double cylinder deadbolt before you purchase the door lock. Key Features Contemporary Lock Design We have an entire contemporary collection designed with thoughtful, ergonomic styling and promise a fresh new look for your home. Non Handling Door Knobs NON HANDLING black round door knobs fit both left-handed and right-hand doors. Easy Installation Install your door levers in a flash. All you need is a door and a screwdriver! No need for professional door fitters, you can do it yourself! Perfect Design And Function Contemporary design locks with concealed screws; Keyed outside & thumb turn inside door knob helps for better operation, while double keyed deadbolt provides higher security. Adjustable Latch 60mm(2-3/8") or 70mm (2-3/4") latch; Fit all doors of 35 to 45 mm(1-3/8" to 1-3/4")thickness. Matte Black Finish It’s not just a door knob — it’s a statement piece. These gorgeous locks are matte black finished and sure to add a touch of sophistication to your home.