This is a practical 4-door square freestanding pet containment pen, designed to create an exclusive safe space for pets. It is made of 18MM density board, which is sturdy and durable, with strong load-bearing capacity, and can effectively prevent pets from running around at will. The bottom of the isolation fence is equipped with fixed feet, stable installation, not easy to shake, to ensure the safety of pets. The overall design is white, simple and fashionable, and perfectly blends with a variety of home styles without being obtrusive.4-door design makes it easy for the owner to go in and out and take care of the pet at any time, and also allows the pet to go in and out easily when needed. Whether it's the living room, balcony or bedroom, this barrier can provide a comfortable and safe activity area for pets, a thoughtful choice for pet owners.