LARGE CAT DOOR FOR HEAVIER BREEDS:Own a bigger cat like a Maine Coon, Burmese, Egyptian Mau?This cat flap is suitable for most cats. MOST SECURE CAT PORTAL YOU CAN FIND:Most cat flaps attach with light tape.But this cat door attaches firmly with sturdy screws.Installs in minutes ; stays put. KEEPS THE BIGGEST DOGS AT BAY:This large cat door keeps your large breed dog out of cat food and cat litter. NO ANNOYING SHUTTER:Have you ever tried to train a cat to use a flapper?It is an exercise in frustration.Luckily our cat door is 100flap-free, so your chubby feline can squeeze through. FITS BOTH SOLID AND HOLLOW DOORS:Unlike most large cat doors, our cat door fits inside doors.The unique design prevents cat paws from getting caught inside hollow core doors. Hardware:ABS plastic Frame size:Height 22.5 cm width 27 cm thickness 5.5 cm Inner frame size: inside diameter 17.5 cm inside groove thickness 3.5 cm
