Colicoid cargo ships were massive, utilitarian ships built for ingenuity and practical uses rather than style. Their Colicoid designers, by compressing living space, made possible an ability to pack more cargo into their spaces than any other type of freighter transport or container ship in the galaxy. Although it blocked lighting, ceilings, too, were fitted with finely spun durasteel nets with which to suspend cargo boxes, while the overall effect created an atmosphere of claustrophobic gloom; needless to say, space for any other purpose which might be antithetical to the transport of freight was always at a premium.