Biscuit style door lock is best used for interior locking applications, such as in bathrooms or bedrooms This door knob offers ANSI Grade 3 performance for interior locking applications Satin nickel finish provides a sleek appearance Six-way adjustable latch fits all doors with 2-3/8 in. (60 mm) or 2-3/4 in. (70 mm) backset, square, rounded corners or drive-in Includes one biscuit door knob with lock