The black metal Exercise Pen / Pet Playpen by MidWest Homes for Pets provides a great enclosure to keep your pet safe and secure while indoors or outside. These Exercise Pens / Pet Playpens are made of durable metal wire that features a black E-coat finish for long-lasting protection against rust and the elements. The black Exercise Pen / Pet Playpen by MidWest Homes for Pets consists of 8 - 24" wide panels that are 36" in Height. When fully expanded, the Exercise Pen / Pet Playpen provides your pet with 16 square feet of enclosed living area. Each durable metal Exercise Pen / Pet Playpen is simple to set up (no tools required) and includes 8 ground stakes for secure set-up while being used outdoors and 4 thumb snaps for easy assembly.