This heavy-duty pet playpen is suitable for dogs, ducks, rabbits, etc. It is easy to set up with no tools required. It can be used indoors and outdoors. Twelve detachable panels can be set up in different shapes to meet your needs. If you need a giant fence for your pets to enjoy running, you can order more sets and combine them together. Also, a door with a latch helps keep them securely confined in place. This foldable playpen can be collapsed for easy storage and is also simple to set up in minutes. Yaheetech