Pet Playgrounds is continually researching, and reengineering our kits to be easier to install, and to perform better. We’ve upgraded one of our main components of our dog fence kit. Our fence is made up of 2 core materials, our 1000+ pound break strength polypropylene mesh and our NEW 1800+ pound break strength rubber coated welded wire. This new material has replaced the older 18 gauge metal hex wire that we used to use to form our dig & chew guard. Watch our video to learn more.