Builder box pack. For bedroom and bathroom doors. Turn button on interior knob. Turning button locks both knobs. Lock may be opened by an emergency entry key in exterior knob. Full 10 year mechanical warranty. 5 year finish warranty. No. 300P 3: 6-way steel adjustable latch (AL), interchangeable for 2-3/8'' or 2-3/4'' backsets, drive-in (round), radius, or square face plain latch, polished brass (3) No. 300P 5 RCAL RCS: 6-way steel adjustable latch (AL), interchangeable for 2-3/8'' or 2-3/4'' backsets, drive-in (round), radius, or square face plain latch, antique brass (5)