This is a very sturdy, well constructed pen!! I’m using it for a pair of Holland Lops but could easily use it for my Maltese. It’s a wonderful size and the acrylic panels make the animals feel like they have lots of room. It was very easy to assemble if you have your own ratchet screwdriver and the right head. Lay everything out first, label it and you can have it assembled in about 40 minutes.