The black metal Exercise Pen / Pet Playpen with Door by MidWest Homes for Pets provides a sturdy / durable enclosure to keep your pet safe and secure while indoors or outside. These durable metal Exercise Pens / Pet Playpens feature a black E-coat finish for long lasting protection against the elements and a secure double-latch door for easy access to your pet. The black Exercise Pen / Playpen with Door by MidWest Homes for Pets consists of 8 - 24" wide panels and is available in 5 different heights. 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, 8 corner stabilizers (these stabilizers work great to protect hardwood floors as well!) and 4 thumb-snaps for easy assembly. These versatile Exercise Pens / Pet Playpens can be used for dogs and a variety of other pets and fold flat for convenient storage while not in use. Make sure to check out the additional Sunscreen or Wire Mesh top for the durable metal Exercise Pen / Pet Playpen if you want to add additional security or shade to your pen when using it outdoors. As always, MidWest Homes for Pets stands behind the quality of our products with a 1 year Manufacturer's Warranty. Dogs up to 25 pounds.