Function introduction Privacy Function * Privacy Knob can be opened by privacy pin exterior when emergency things happens,there is no thumb turn is our crystal knobs.Complete crystal head will bring you a luxury feel. * Ideal for bathrooms, bedrooms, or anywhere privacy is necessary(not best one for security). Dummy Function * Non-Turning/Locking Knob,Just like a door handle * Usage:Mostly Interior use, ideal for doors that require only push/pull function– no latch or lock,especially for french door balcony corridor hallway closet and cabinet Passage Function * Passage knob best suit hall and closet * Both sides of this beautiful lock head are always free and there is no locking function making it perfect for hallways, closet doors, pantry and anywhere else a lock isn't needed. Read more Perfect Crystal Design Contemporary design door knobs with concealed screws, crystal glass door knobs fit for better operation. Specification: * Adjustable to 2-3/8" or 2-3/4" * Door Thickness: 1-3/8" or 1-3/4" *The latch plate is unremovable. * Rose Size: 2.17”(55 mm) Easy Installation Install your door knobs in a flash. All you need is a door and a screwdriver! No need for professional door fitters, you can do it yourself! Read more Glass Door Knob with Oil Rubbed Bronze Glass Door Knob with Satin Nickel Finish Glass Door Knob with Blue Crystal Style Glass Door Knob with Pink Crystal Style Glass Door Knob with Polished Chrome Square Rose Glass Door Knob Satin Nickel Lock Style Knob Knob Knob Knob Knob Knob Key Feature Keyless Keyless Keyless Keyless Keyless Keyless Function Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Finish Oil Rubbed Bronze Satin Nickel Blue Pink Polished Chrome Black & Nickel & Bronze Crystal Style Door Knob with Satin Nickel Crystal Style Door Knob Oil Rubbed Bronze Crystal Door Knob with Nickel Finish Crystal Style Door Knob with Black Finish Crystal Style Door Knob with Blue Finish Crystal Door Knob with Oil Rubbed Bronze Lock Style Knob Knob Knob Knob Knob Knob Key Feature Keyless Keyless Keyless Keyless Keyless Keyless Function Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Passage&Privacy&Dummy Finish Satin Nickel Oil Rubbed Bronze Satin Nickel Black Blue Black & Nickel & Bronze Glass Door Lever with Satin Nickel Finish Glass Door Lever with Oil Rubbed Bronze Crystal Style Door Lever with Satin Nickel Crystal Glass Door Lever with Black Finish Keyed Alike Single Cylinder Knob with Deadbolts Keyed Alike Single Cylinder Lever with Deadbolts Lock Style Lever Lever Lever Lever Handleset Handleset Key Feature Keyless Keyless Keyless Keyless Keyed Alike Keyed Alike Function Passage&Privacy Passage&Privacy Passage&Privacy Passage&Privacy Entrance Function Entrance Function Finish Satin Nickel Oil Rubbed Bronze Satin Nickel Black Polished Brass/Gold Polished Brass/Gold