Bought the house for our Teddyhamster which however no longer fits with 10 weeks the climbing tube. The house was because anyway still a huge "main house" is available, unceremoniously used as monkey bars and it also makes it a lot of sense. Our hamster lady jumps from floor to floor and has sheer joy already gnawed half the roof, on which they also love to sit and stares at the area. As a retreat or main house for hamster means but unsuitable as a "playground" but top! Thus a star deduction, because I think the reference in the description is missing, that this hamster house has to be used only for dwarf hamsters and mice as the "main house".