This animation illustrates the simplified construction of a Coselle. "Coselle™" is a contraction of the phrase "coiled pipe in a carousel". A single Coselle™ consists of approximately 21 kilometres (13 miles) of 168 mm (6") diameter steel pipe that has been coiled into a reel-like steel support structure. The reel is enclosed and then filled with inert gas. The Coselles™ are subsequently permanently installed and integrated into the hull of purpose built ships which are also filled with an inert gas.