"I have one of those," he said to Ronnae with some surprise. He hadn't actually imagined that a portable hole would be developed in two worlds so obviously different.

Back to Daja; he patted the bag as he answered. "This is a small one -- thirty cubic feet or so, and two hundred fifty pounds maximum weight. There are other sizes, though; the largest holds six times as much weight in two hundred and fifty cubic feet of space. It weights a lot more, though."