sentences:  As recently as August 2017 capsules could still be rented (relatively inexpensively, considering the Ginza locale), though the waiting list remains long.The building is composed of two interconnected concrete towers, respectively eleven and thirteen floors, which house 140 self-contained prefabricated capsules.Each capsule measures by with a 1.3 metre diameter window at one end and functions as a small living or office space.