Well after spending a long time searching for a good size hamster cage I realised its actually impossible I know the hamster heaven and cambridge are pretty big but Sausages was already in a converted zoozone so they didn't really offer much more space and they were maybe a bit boring for a young active hamster. I know he was certainly bored with the zoozone So I've been trying to sell an old bird cage for a while and realised size wise it was a perfect hamster cage it just needed adapting. Its awkward and hard to clean because there are only two small doors halfway up either side but its made him very happy and hes zooming around up and down the tubes and very pleased with his four storey home