New in box Exercise pen has 8 connected panels (each panel 24W x 24H inches) to create 16 square feet living area; Playpen is ideal for small dogs up to 16 inches tall Portable exercise pen is great for indoor and outdoor use, a black rust-preventive e-coat protects the dog playpen from the elements and included ground stakes keep the pen anchored to the ground No tools required. Simply unfold, shape and connect dog playpen together, exercise pen can be set-up in seconds and folds flat for easy storage or travel Puppy playpen includes 4 ground stakes, 4 secure locking thumb snaps and can be used in conjunction w/ a metal dog crate to expand your dog's living area Exercise pen works great as a puppy playpen or as an exercise area for non-climbing small animals including rabbits, ducks, turtles and guinea pigs