Protect your notebook and monitor with this double lock-head security system. Patented, T-bar locking mechanism and super-strong carbon tempered steel cable provide maximum protection that attaches to the standard Kensington security slot found in 99 percent of notebooks and many computer devices. Lock down your computer system and leave it safe. Carbonized, 7-1/2' long, 5.5mm thick steel cable with two locks is easy to install without messy glue to secure equipment. Rubber bumper protects equipment surface from scratches or dents. Small lock head won't lift computer off your desk or block ports. Security cable fits into a built-in security slot found in computers, flat screen monitors, and projectors. Online key-code registration helps you replace lost keys.