For those who own dogs and cats weighing up to 120 pounds, the Ideal Pet Products is a great choice. It measures about 15” by 23.5” in size thereby permitting entry of relatively large sized dogs. Frames are made from molded structural foam plastic.

Flaps, on the other hand, are made from the clear insulated vinyl material. A telescopic frame makes it adaptive to various wall thicknesses. The flaps are soft to provide a layer of insulation from outside weather. Its wall tunnel also provides up to 9 inches of air pockets for insulation.