MEDIATOR® multiple locking system, tubular frame version. The MEDIATOR® multiple locking system in the tubular frame version is available in various backset sizes., Self-locking: bolt and latch are locked - greater security., Additional stable hook latches for increased burglary protection. The hook latches are not used to press the door seals on. The system only works reliably without lateral pressure on the latches., Mechanical sequence control between cross latch and control latch., Integrated panic function via the inside handle., Please note the U-shaped faceplate when planning and installing.