Versatile Use: This dog playpen is composed of 4 panels that form a spacious 36" x 36" square. The door opens all the way to the top, allowing easy access for the owner. Ideal for Small and Medium Pets: The 24" high dog pen is perfect for puppies, small dogs, and other small animals such as Poodles, Bulldogs, Beagles, Cocker Spaniels, cats, rabbits, ducks, and guinea pigs. Waterproof and Durable Ground Mat: Made of 600D heavy-duty Oxford fabric, the ground mat of our exercise pen is waterproof, washable, and tear-resistant, protecting your floors from damage.