HANIML Extra Large Dog Door for Walls Heavy Duty Aluminum Doggy Door with Telescoping Tunnel Energy Efficient Double Flaps Pet Door for Large and Extra Large Doggies Up to 220 lbs, Weatherproof

Product Size: 17 3/5(W)*27 4/5(H) inch, the size of flap: 14 2/5(W)*23 7/10(H) inch, which designed for pets under 220 pounds.Please measure the width and height of your dog to make sure that the pet door is fit for your pets.

The dog door equipped with extended tunnel which is suitable for 4 to 8 inch thick interior & exterior walls or doors.

This large aluminum dog door has double Flaps with 6pcs magnetic, which allows the dog to enter and exit independently and automatically returns after the dog passing- Free them in garden and house by themselves.

The doggy door is made of high quality aluminum, no rust, no corrosion, flap is made of vinyl, rugged construction, which is strong and durable enough to against cold Weather & insulates heat.