Improving the lives of pets and their people. Stop feeling guilty about leaving your pet at home and give them the freedom to come and go as they please. The Samll Deluxe Aluminum Pet Door with adjustable tunnel can be used for small dogs up to 20 lbs. The outer frame measures 12.6" x 9.45" and the flexible flap measures 9.45" x 6.89", with a robust vinyl flap suitable for even the most energetic dogs. This pet door is uniquely designed for doors, screens, and walls up to 2.8" thick to allow your four-legged friend the freedom he or she needs for happiness and health. The two way controlled access allows your pet open access, with magnetic centering flap to ensure the door shuts after each use, keeping out drafts and weather. You can also change the access to locked, with the locking panel keeping your pet inside or out. Have complete peace of mind knowing that the Deluxe Aluminum Pet Door is designed to last and includes an industry leading 3 year limited . Hakuna Pets is a dedicated pet care company, specializing in independence and safety technology to improve the lives of pets and their people. To create better lives, it is our mission to make the best in pet care available and affordable to homes and families around the world with a range of door types and sizes to suit all breeds and needs.