The Ruff Land Performance Kennels door Shield helps keep heat inside the kennel and debris out! It also shields your dog from excessive air flow during travel in the bed of the truck or out on your side by side. Can also be a solution to dogs with anxiety issues. Mounts on the inside of the kennel door. Mounting hardware is included. The plastic Shield is not chew proof. Check out our Guard Dog door liner for a heavier duty option. Available for X-Large, Large, Intermediate and Medium kennels.