1ABS Material: Cat flap door made of ABS is safe and non toxic for big cats, while being more comfortable and easier for your dog or cat to use. 2Safe Design: Pet door has a glossy surface that won't scratch your pet, you don't need to worry that your pet will be scratched at the lower end of the door when passing through it. 3Unhindered Opening And Closing: The cat door has a moderately long mane around the inner door, which reduces friction and opens and closes unhinderedly. 4Windproof And Warm: Small pet door saves the time of opening the door and freely control the cat's entry and exit. Prevent cold air from entering, windproof and warm 5Anti Shedding: Cat door is installed with screws to avoid shedding caused by tape installation, no noise and no trouble caused by damage to the door.1 x Pet Door8 x Screw8 x Nut