Rossel Jimmy Proof Double Deadlock

Deadlocks increase your protection of your home because they have a locking mechanism that prevents an intruder from being able to open them without a key in deadlock mode. Deadlocks also have an additional locking mechanism that prevents them from being opened with brute force.

Deadlocks are also installed on the inside of a door, with the single cylinder deadlocks having a keyhole on the outside and a turnknob on the inside of the door. This means that you can only unlock it from the outside with a key or by hand on the inside