The Cage Sans Frontières is constructed in the north of Italy in several plants. Its made in 4mm COR-TEN plate lined with1.5mm super-mirror-polished stainless steel. The two layers are welded together using COR-TEN welding rods. The overall dimensions of the cage are: 38.5 meters long / 10.5 meters wide / 5 meters tall. It consists of 240 cells (varying in size from 2.3w x 1.4d x 1.3h down to 0.9w x 0.5d x 0.4h) which are separated by a recessed COR-TEN structure. The size of the gaps between the cells varies corresponding with the diminishing dimensions of the adjacent cells.
The outer edge of the cells are corroded .Paradoxically, Corrosion in COR-TEN is the protective layer and enjoys a rusted red patina. The inner cells create infinite ricocheting reflections allowing views of the exhibits from all directions. The overall shape of the cage is that of a twisted looping band. Which means the inner surface on one side of the elongated loop becomes the outer surface of the opposite side. The cage addresses both its inner and outer spaces and although the band is uninterrupted, the twists allow two gateways between inside and out.
After fullfilling its initial purpose as the centerpiece and structure of the Ron Arad exhibition at the MoMA, No Discipline, the Cage Sans Frontières was shipped to and installed in the atrium of the new Singapore Freeport who kindly donated the piece for the exhibition.