Midwest Black Contour Exercise Pen for Dogs, 24 HContour exercise pens by Midwest Homes for Pets are a great solution for your pet to get exercise or have a play area while being contained. Designed for the safety, security, and comfort of your dog, Contour Ex Pens set up easiy in seconds without tools and have a safe and secure lift door system in addition to the slide bolt latch. Contour Exercise Pens easily fold down flat for easy storage and come with ground stakes and corner stablizeers. Mw