Dog Door for Wall, Telescoping Tunnel, Aluminum Frame, Durable Magnetic Double Flaps Heavy-Duty Pet Door, Security Lock, Energy Efficient, Easy to Install(Up to 40 Lb), Medium

【LET EVERYTHING RETURN TO PET ITSELF】The luxury aluminum dog door features new extra-long telescopic tunnel design that helps prevent bad weather and drafts. Come and give your pet a sophisticated and unique home!
【FLEXIBLE INSTALLATION】The extra long telescopic tunnel dog door can be installed on all types of interior walls and exterior walls of [4"-8"] thickness, suitable for pets under 40 lbs. Flap Opening: [8 4/5"W x 13 3/4" H]. Frame: [12"W x 16 3/5" H].
【FREEDOM INDEPENDENCE】The pet door has 2 locking modes to choose from,double magnetic flaps allow your cats and dogs to enjoy free entry and exit, potty rest and playtime without your help.
【ENERGY SAVING & SAFETY】Durable new aviation aluminum alloy can be used for many years and is stronger. Equipped with 2 safety locks, safety plate and sliding lock for safety and energy efficiency.
【QUALITY ASSURANCE】Our dog door includes cutting template, detailed instructions, mounting hardware to make installation no more difficult. If you have any questions about dog doors, please contact us in time.