Black Square Door Knobs Entrance Privacy Passage Dummy 5765-6085 SerialFrom 1 Pack to 12 Pack Keyed alike & Different keyed availableFree USA shipping Entry installs on exterior doors.Privacy knobs is designed for bedrooms and bathrooms, locking with turn buttons and not requiring keys.Passage knobs are designed for hallway doors, laundry rooms and closet doors that latch but don't locks.Dummy knobs are decorative hardware pieces designed for pantry doors or other doors that only require a pull to open, with no latch or lock. Dummy only has one knob.All metal constructionInstructions for easy installation includedLatch and screws are included Fits 1 3/8" and 1 3/4" doorsBackset 2 3/4" (70mm) and 2 3/8"(60mm) adjustableTwo keys for each keyed locksWarranty on manufacture defect