The CAL Double-Bolt Lock works by securing the door to the frame at 2 security points and preventing any movement of the door. With its double locking action the CAL Double-Bolt Lock makes it virtually impossible to remove the door by lifting it off its track.

The CAL double bolt lock can be used as a secondary or primary locking system on glass sliding doors. The lock can be mounted above the OEM lock to be out of children's reach or below the OEM lock to be with in children's reach. The lock can also replace the OEM lock with the addition of the OEM Replacement cavity.