The Universal Welded Wire Pen and Extension Kit Combo measures 16ft L X 8ft W X 4ft H and is made from 2in x 2in welded wire, which makes it perfect for housing all types of animals. The wire top adds that extra safety measure to really protect your pets from predators. This pen comes equipped with an easily removable, knock-out back panel for the addition of a Omaha Coop, Large Dog House or Wood Hutch. It can serve as a complete home for chickens, small dogs, turtles, adult rabbits, cats and baby goats.