This is a small and simple triangle key for opening the outside door of an elevator shaft.

As i did an internship at an elevator maintenance company when i was in highschool I know my way around an elevator reasonably well. Since i lost the keys i got, I always missed them as I want to be able to let people out of our elevator if it malfunctions. Now i can have infinite :).

This should only be used by people that have experience with elevators. Opening such a door could cause a fall hazard if the elevator is on a different level. Use with own responsibility.