The combosaver lock head features the patented 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 all laptop locks are not the same locks differ based on lock technology used the ease of use and the level of security provided combosaver locks are built to exacting engineering standards kensington combination locks provide 10 000 possible combinat