Kwikset 730Pskrdt Pismo Privacy Door Knob Set - Gun MetalPrivacy: Privacy door hardware features a locking mechanism on the interior for use on bedroom and bathroom doors where locking is needed. The exterior side features a small pin hole to unlock the door hardware from the outside. Features: Tested to exceed ANSI BHMA AAA security requirements Constructed of high quality materials for durability and dependability Installs easily with all necessary mounting hardware included Covered by Kwikset s limited