Satin Brass Door Knobs, Modern Rectangular Design, Privacy Function for Bedrooms Brushed Gold Door Handle: Brushed brass door knob is made of heavy-duty zinc alloy, sturdy and solid for long-lasting use. Featuring advanced electroplating technique, the brushed finish provides a textured surface and adds a modern touch to your home decor. Privacy Keyless Door Knobs: Ideal for interior rooms requiring privacy such as bedrooms and bathrooms. Lock from the inside by pressing the push-pin button; unlock by turning the door knob. In emergency situations, the door can be opened from the outside using a hex key or similar thin tool inserted into the release hole. Universal Door Knobs: Gold door knob fits doors from 1 3/8" (35mm) to 1 3/4" (45mm) thick, with adjustable latch from 2-3/8" (60mm) to 2-3/4" (70mm). Modern door knob features a single-cylinder reversible design, suitable for both left and right-handed doors. Easy installation with included instructions. These modern rectangular interior door knobs fit standard pre-drilled holes and are compatible with both replacement setups and new door installations.