Features:1. LARGE CAT DOOR FOR BEEFIER BREEDS: Own a bigger kitty like a Maine Coon, Burmese, Egyptian Mau? This cat door fits most cats. 2. MOST SECURE CAT PORTAL YOU CAN FIND: Most pet doors for cats fasten with flimsy tape. But this kitty door attaches firmly with sturdy screws. Installs in minutes; stays snugly in place. 3. KEEPS BIGGER DOGS AT BAY: This large cat door stops your big-breed dog from getting into the cat food \u0026 kitty litter. 4. NO ANNOYING FLAP: Ever try training a cat to use a flap-covered pet door? It's an exercise in frustration. Fortunately, our cat door is 100% flap-free, so your pudgy feline can walk right through. 5. FITS SOLID \u0026 HOLLOW DOORS:Unlike most big cat doors, our cat door fits interior doors with cat door's Size 22. 5x27cm(HxW). Unique design keeps cat's paws from getting stuck inside hollow-core doors. Notice:*Actual color may be slightly different from the image due to different monitor and light effect*Please allow 1-3cm deviation due to manual measurementDescription:Size: 22. 5*27*5. 5cmincludes:1 set x cat door (with screws and screws cap)