Save money on your next home improvement project by purchasing the Atlas Contractor 4 Packs of Polished Brass Tulip Door Privacy Locks. This pack of entry locks is perfect to use when you need to simultaneously install or change the locks on multiple bedroom or bathroom doors at one location. The thumb turn lock can be opened from the outside with a small, circular tool to prevent anyone from locking themselves inside. The knobs come with a 2 3/8″ backset that adjusts in length easily to a 2 3/4″ if necessary to fit your door. Complete directions on how to adjust the backset and install the lock are included. All locks are keyed alike and packed 4 to a box.