Tough 10mm Lock Head with CleatTM Locking Technology, attaches to the Kensington Nano Security Slot found in select ultra-thin laptops, 5mm Keying System, Carbon Steel Cable resists and deters cutting attempts, Pivot & Rotate Cable, patented anti-pick Hidden PinTM Technology. Engineered to be Kensington’s smallest lock for ultra-thin laptops and other devices, NanoSaver™ represents the next generation of laptop security. The compact (10mm diameter) lock head has been designed to meet the requirements of ultra-thin devices that use the Kensington Nano Security Slot™.