For bathroom and bedroom doors. Outside knob locked by inside button. Push-button locking. Unlocked by turning knob or from outside with narrow tool. Packaged with a 1″ square corner, 1/4″ round corner, and 1″ circular drive-in spring latch, adjustable for 2-3/8″ or 2-3/4″ backsets. 2-1/4″ x 1-5/8″ full-lip square corner strike. Grade 2 construction for superior durability and quality performance. Lifetime mechanical warranty.