[Brushed Gold Door Handle] Brushed brass door knob is made of heavy-duty zinc alloy,which is sturdy and solid for long-lasting. With an advanced electroplating painting technique,the brushed finish makes the product more textured and adds a modern look to your home. [Privacy Keyless Door Knobs] Privacy door knobs are ideal for interior room where privacy is needed,such as bedroom and bathroom. From interior,push pin button to lock,twist door knob to unlock. And you can use a hex key and any thin tool to insert the release hole to open the door from outside in emergency. [Universal D1oor Knobs] Gold door knob fits with 1 3/8"(35mm) to 1 3/4"(45mm) doors,adjustable latch from 2-3/8"(60mm) to 2-3/4"(70mm). Morden door knob is single-cylinder reversible design,suitable for left or right-handed doors. You can easily install the modern rectangular door knobs interior set according to the instructions included in the package. Gold interior door knobs fit pre-existing holes greatly,work with both replacement and door.