Item Type: Pet Flap Door Material: ABS, PC Product Size: Length: Approx. 27.5cm/10.8in, Width: Approx. 23.5cm/9.2in, Total Thickness: Approx. 5cm/1.9in Inner Length: Approx. 18.5cm/7.3in, Inner Width: Approx. 18cm/7.1in 4 Types of Closures: 1. Only In and No Out 2. Only Out and Not In 3. Completely Open 4. Completely Closed1[Guard Food] This cat flap door allows you to safely keep cat food in your home and deny your dog access. Cats can return to eat and drink after playing outside. 2[Automatic Magnetic] The double magnetic suction design of the cat flap door can effectively suck the inner page and close the window automatically after the pet leaves. 3[Screw Fixing] Automatic cat door is installed with screws to avoid falling off caused by tape installation, no noise and door damage. Can be installed in garage to guard homeless pets. 4[Universal Design] Most cat caves are not suitable for hollow doors. This magnetic door safely fits any solid or hollow interior door. And Inner slot can be cut to fit the thickness of the door. 5[Safe And Durable] Pet flap door is made of premium ABS material, high hardness, wearable and durable. The edges are flat and burr free to guard cats from scratching. 1 xPetFlapDoor 8 x Long Screws 8 x Short Screws 1 x Double Sided Adhesive 8 x Plastic Screw Cover 1 x English Manual