The Kensington 64032 Master Lock Universal Notebook Security Lock protects your laptop computer from theft with a patented cable-and-lock system. Constructed with a galvanized steel cable this notebook lock provides you with strong security and peace of mind knowing your valuable laptop and data are secure. The Kensington 64032 secures to your computer via an industry-standard Kensington security slot and is backed by a manufacturer s limited lifetime warranty. The Kensington 64032 comes with two keys and a 72-inch cable with replacement keys available through the manufacturer.