WeatherTech Pet Barrier is specially designed to keep your favorite pet safely in the back of your vehicle. So next time you need to travel with your pet, make sure it will rest calmly in your vehicle instead of lashing around and interfering with your safe driving. The barriers are made from a heavy-duty steel tubing which will resist even the heavy thrashing of a Saint Bernard. The barriers are available with a rubber coating for maximum protection and are easy to mount. They can be adjusted to handle any pet size. You can choose an optional extension to add nine inches of height for larger dogs. The barriers are covered by a 3-year warranty.