Features an ultra-thick 8mm carbon-strengthened steel cable. Patented T-bar locking mechanism provides a secure connection. Built-in defense system to guard against tampering. Low-profile lock heads won't block laptop ports or lift laptop off desk. Locks into the standard Kensington security slot found in 99% of laptops, as well as many flat panel monitors, desktops, printers and other devices. Lock Type: Cable/Key; Opening Type: N/A; Body Material: N/A; Color(s): N/A. Manufacturer's limited lifetime warranty. Includes lock and two keys.