Proudly made in the USA Port-A-Pen Extremely Portable Horse Panels Port-A-Pen horse panels are handcrafted, collapsible, light weight, and easy to store. They fit easily in the trunk of a car or in the bed of a truck even with a gooseneck trailer hooked up! Port -A-Pen horse panels are custom designed to fit your needs with high quality steel and aircraft grade pins. There aren't any sharp screws or bolts for your horse to be injured on and are modular in design. Each panel is designed to expand to 8, 10, or 12 foot long, which makes the design extremely flexible!