These cool things are pet pop up tents. I bought one two years ago to house my foster kittens away from my cats. These things are great! They fold up for storage, are easy to hose out and wash fabric, lots of colors to choose from, roomy for the animals and they can't get out. My cats could not hurt the kittens while in this. Kittens like to climb the net top, but they are still contained. The tops and bottoms unzip for easy access. They come in all shapes and sizes. I had food, water and litter pan along with room for the kittens to rest. After they outgrew it, I could clean and fold it up. Great idea for travel with pets.