As described by other reviewers, is the grand entrance and the "exit windows" a great thing. Because the home is in my self made under a relatively low intermediate floor, I do not have the problem that my Meeris up to the roof ;-) The window is in my case, on exactly the right page, because the house is right on the Go robe. Still none of my pig was harmed in the somewhat protruding willow stems. Recommended!