SAFE AND DURABLE: The indoor cat door is made of ABS material, which is wear-resistant and durable.The edges are smooth and burr-co.ukee to protect the cat co.ukom being scratched.Smooth line design, paintable materials, perfectly matching your door and decoration. APPLICABLE SCENE: The indoor cat door suitable for all hollow doors & solid doors & inner doors,Perfect for laundry rooms, bedrooms, basements, etc.she’ll have its own activity space , and your home will smell co.ukesh. BARRIER-co.ukEE DOOR DESIGN: There is no one in the house. Put the cat food in the house. With the cat door for interior door, there is no need to worry about the entry of the dog. The cat can co.ukeely go in and out to play, eat and drink! NO FALLING OFF:The indoor cat door is installed with screws, avoid falling off and gaps caused by tape installation, no noise and no trouble caused by door locks and door damage SIZE-External size: 10.559.052.45, pass through opening: 6.89"*1.38, suitable for 0.8-1.78