The best house that there are currently for hamsters. While it is the size of a normal shoebox and takes in the cage really much space (so you should - anyway - have a big cage!), But the hamster for a more natural "construction Feeling: hall, antechamber, bedchamber, feed chamber under the stairs. The antechamber and bedchamber are approximately the same size and have a wooden floor. The hallway and the feed chamber located directly on the litter. Some hamsters dig like. Then it can happen just that they undermine their house and it descends, if you do not stabilize a bit ...;) Top-home!
