F51 ORB 505 Finish: Bright Brass Features: -Keyed entry knob.-All metal chassis for strength and durability.-Guaranteed to fit all standard door preparations.-Keyed entry function; turn button locking, can be unlocked by key outside or by turn button inside, Inside knob always unlocked.-Can be rekeyed to match existing locks or other locks purchased.. Options: -Available in several finishes. Collection: -Orbit collection. Warranty: -Manufacturer provides lifetime limited mechanical and finish warranty and 1 year limited electronics warranty.