sentences:  The building is made up of over 9,135 tons of steel, supported by 28 caissons, going down into the Earth, and over of concrete.The exterior of the building is covered in of glass, with 4,400 vision panels and 4,200 spandrel units between floors, representing Toledo's history as the "Glass City," and O-I's presence in the glass industry.A 294-seat auditorium is located in the tower complex with an executive parking garage immediately below it, and the building itself is connected to the CitiWalk system.