Defcon Cl Armor Combination Lock Extreme cut resistance: Dual layer, steel-on-steel cable provides more cut resistance and greater protection against cable provides more cut resistance and greater protection against cable cutters than other leading security cables Keyless lock system: Set or change up to 10,000 possible number combinations; does not require a key which can be lost or stolen. Protects more than your notebook: Flexible and heavy-duty cable lock attaches to any notebook/desktop computer, monitor or projector with a lock slot. User-settable keyless security solution. Attaches to any notebook, desktop monitor, or projector with a lock slot.