Griffin TechSafe Cable Locking System for Laptops (GC16046) Cable lock system for most laptop, netbook and notebook computers Patented Security Blade slides through your laptops hinge to create a secure anchor point 4-digit combination lock closes around the security blade This product is manufactured in China Cable lock system for MacBook Pro, MacBook and most other laptop, netbook and notebook computers. Patented hardened steel Security Blade slides through your laptop's hinge to create a secure anchor point. 4-digit combination lock closes around the security blade. 5-foot coiled hardened steel cable loops around a table or chair leg to complete your setup. Convenient cable strap included .