Strong 10mm lock head offers uncompromised security, Patented Hidden Pin Technology, T-Bar Locking Technology attaches to the Kensington Security Slot, Self-coiling carbon steel cable stretches up to 6 feet or shrinks down to 3 inches, Pivot and rotate ball joint. Engineered to be Kensingtons smallest lock for laptops and other devices without compromise, the MicroSaver 2.0 Portable represents the next generation of laptop security for mobile users. The compact (10mm diameter) lock head has been designed to meet the requirements of ultra-thin devices that use the standard Kensington Security Slot (T-bar) found on 90% of business devices worldwide. The self-coiling carbon steel cable stretches up to 1.8m or shrinks down to 76mm for easy packing.