Guardian Gear Pet Playpens. Our portable pet playpens let you create a safe and secure play area for pets just about anywhere. These playpens for dogs can also be used as a training pen. Portable design collapses for easy storage. A go-anywhere puppy playpen and training pen thats suitable for indoor or outdoor use. Portable design sets up quickly and collapses for easy storage in the included travel bag. Features a zippered mesh front door, a removable bottom pad for easy cleaning, and a storage pocket on the side. Bone-shaped mesh windows provide ventilation and visibility. Each measures 45 in L x 31 1/2 in W x 27 inH. Material: Polyester, Metal, & Plastic. Care: Wipe clean with a damp cloth.