Targus DEFCON 1 Retractable Cable Lock for Laptops/Notebooks (ASP29US) Designed to easily and quickly secure notebooks, sporting equipment and other personal belongings; includes lock slot adapter and features a user-resettable combination  up to 10,000 different combinations possible The lock retracts into a durable casing that also stores the lock adapter; compact form factor provides an easy to use, highly portable lock system, perfect for travel Material  Galvanized steel cable Limited warranty does not cover products purchased from 3rd party sellers