I have a crate that is used to store clean dog beds and extra toys, we use the expen. I used it yesterday to block off the living room so hubby could replace a window without "help". We also have the 4'x4' wire top that can also be uses as 2'x4' if I only want half of the pen to be used (puppies). The wire top works great on the pen for Rock because he can fly/climb over any pen or gate that we have. |