Another new technology that was promoted at the Exposition was the safety elevator, developed by a new American company, Otis Elevator. Otis built the elevators carrying passengers up the legs of the Eiffel Tower to the first level. When journalists expressed concern about the safety of the elevators, Otis technicians filled one elevator with three thousand kilograms of lead, simulating passengers, and then, with journalists from around the world watching, cut the cable with an axe. The elevator's fall was halted ten feet above the ground by the Otis safety brakes.