As I said, biggest that I could find in 2008
Hamsters LOVE it though... always busy doing things...
People always ask if I wont "lose" my hamster in such a cage, and that hamsters can't be tame in a cage that big... but, hamsters always love me... they will sit at the door "Let me out I wanna cuddle/run on the bed/be in the play pen" etc.
Never had a biter in this cage. I even had hamsters from the shelter that were known to be biters... never bit me and I could pick them up like any other hamster