Homdox Plastic 4 Way Locking Lockable Pet Cat Door Small Cat Flap White (3.5 x 4.9 x 15.6 inch) Main Material: ABS; Color: White. Size: 17.2 x 14.0 x 3.5inch. Thickness: 1.96 inches. 2 way locking system (locked and unlocked) . Suitable for large and extra large dogs,such as Labradors, German Shepherds, Dobermanand, Rottweiler,Husky and other large dogs, cats or pets(PLEASE MEASURE YOUR PET FIRST) Tools required: Pencil, Ruler, Jigsaw, Drill, Square, Screwdriver, Tape measure. Package Content: 1 x Pet Door with Accessories.