Kensington 64671 portable combination laptop lock with 6 ft. Cable, red features: t-bar locking technology attaches to the kensington security slot found on most laptops resettable 4-wheel number code with 10,000 possible combinations push-button design for one-handed engagement to easily attach lock self-coiling carbon steel cable stretches up to 6 feet or shrinks down to 3 inches for easy packing register & retrieve program to easily look up forgotten codes choose from 10,000 possible combinations attaches to laptop via the kensington security slot found in 99% of computers taa compliant specifications: best for: laptops cable: protective sheath, security loop cable construction: 7×7 cable length (ft/m): 6/1.8 cable thickness (mm): 3.5 lock management: standard lock type: combination lock