This is Ebony's Alexander.
She was and still is lol a very naughty girl, she ate a hole in the plastic base within two weeks of having her new home! We made a sort of wooden lining to put inside the plastic base to heed her escape route
that's what the blue is that you can see between the base and the shelves
I've used both shelves but have raised and added ramps to the joining bridge part so I could fit a 12inch wonderland wheel under it. I've only used the ramp house, it's on the right hand shelf, I stand her fresh food bowl on top if it and hide nice things for her to find inside it, other than that she never uses it. Bec in here, well her Neptune got stuck in the window of his ramp house, they had to break the house to release him
she very kindly warned me about this, so I gave glued a sort of wooden cross inside the window and also covered the inside of it with a piece of polycarbonate so Ebony can't get stuck in hers
it's better to be safe
She has a home made house hiding in a corner under a shelf which she nests in and lots of toys hidden down there too