This Multipass card is designed to work like a standard shove knife or gate latch tool with the convenience of sliding in your wallet like a credit card. This tool comes with a standard hook and shove tool to open key-in-knob locks, for commercial and residential interior doors. It can also be used to open exterior security gate latches, and other exposed latch locks. You can attached a piece of cord to the lanyard hole on the bottomn of the handle to get that extra purchase and grip to pull downward when bipassing a tough to breach lock.