Kensington KMW64068 A laptop is both an expensive piece of equipment and a valuable source of personal information--so you don't want it to fall into the wrong hands. This six-foot, super-strong, steel composite cable with carbon tempered steel core helps deter theft. The patented T-bar lock simply adds more security to the tough cable. But that's not it, the lock also features a built-in defense system to guard against tampering. Even though the lock is famous for its strength, it's the sleek, stylish design that will initially catch your eye. Lock Type: Cable/Key Body Material: Galvanized Steel.