The MicroSaver lock head features the T-Bar locking mechanism. The T-Bar provides a tight fit with the Kensington Security Slot. A rubber bumper ensures a snug fit between the lock and the security slot and protects your hardware. A further deterrent is the tamper evident feature. When a Kensington MicroSaver lock is tampered with it locks itself down and can even trap foreign keys. All laptop locks are not the same; locks differ based on lock technology used the ease of use and the level of security provided. This MicroSaver lock is built to exacting engineering standards. We provide two keys with each standard lock. Each key is stamped with a unique code. Register your code online and well be able to send you a replacement key.Our business is protecting yoursKensington locks are made with high-carbon steel cables and tested under rigorous real-world conditions to resist lock-picking corrosion tampering and extreme environments. Our locks set the industry standards and continue to exceed them.Master keyed solutions available Master keyed solutions allow you to tailor the physical security of equipment to specific business needs. Regulate access with a set of locks that can be opened by a master key. Offer employees unique individual keys to their own locks while you keep a master key. Or give employees identical keys to unlock shared equipmentperfect for community laptops and A/V equipment. We offer three types of master keyed variation of this lock.1. Administrator-only access Master Keyed Solutions. Total control with one key2. Administrator access with user keys Single Keyed Solutions. Total security easy individual access3. Shared access Like Keyed Solutions. Security for shared environmentsry standards and continue to exceed them.Master keyed solutions available Master keyed solutions allow you to tailor the physical security of equipment to specific business needs. Regulate access with a set of locks that can be opened by a master key. Offer employees unique individual keys to their own locks while you keep a master key. Or give employees identical keys to unlock shared equipmentperfect for community laptops and A/V equipment. We offer three types of master keyed variation of this lock.1. Administrator-only access Master Keyed Solutions. Total control with one key2. Administrator access with user keys Single Keyed Solutions. Total security easy individual access3. Shared access Like Keyed Solutions. Security for shared environments