3-Flap Insulated Aluminum Dog Door for Walls, Heavy-Duty Telescoping Pet Door with Dual Security Locks & Magnetic Flaps, Closing Panel, Large, Pets Up to 110 LB

Generous Size for Large Pets: Flap opening 18.7 x 9.92 inches, suitable for pets up to 110 lbs. Includes a locking panel to control your pets access and prevent unwanted wandering. (Tip: check pet size chart before ordering.) | Upgraded 2+1 Insulated Flaps Comfort & Cleanliness: Features 1 insulated flap + 2 magnetic flaps + dust seals to block cold air, dust, and noise. Keeps your home cozy and your pets comfortable all year round. | Premium Aluminum Construction Durable & Rust-Free: Made from high-quality aluminum alloy with reinforced welding, lightweight for easy handling, and corrosion-resistant for long-term use in any season. | Easy DIY Installation Complete Kit Included: Comes with cutting template, guide paper, detailed instructions, and a full accessory kit for stress-free installation. Fits wall thickness 3.957.5 inches; cutout size 18.9"H x 10.6"W. Perfect for any wall or door setup. | Safe & Secure Peace of Mind for Owners: Dual indoor/outdoor aluminumlocks keep pets secure when you're away. Bonus: 2 firefighter stickers alert rescuers in case of emergencies, ensuring your furry friends are safe.