Ideal for thin laptops, the Slim NanoSaver Portable Combination Lock allows the laptop to lie flat and stable, and won't block valuable ports. Self-coiling carbon steel cable sheathed in plastic stretches up to six feet and shrinks down to three inches, for easy portability. Features include a resettable four-number combination; one-handed operation; and Register & Retrieve for quick, secure, and easy combination retrieval. Meets or exceeds rigorous strength testing standards. From Kensington, inventor of the laptop cable lock, and industry leader in physical device security for more than 25 years.