SAFE AND DURABLE: The indoor cat door is made of ABS material, wear-resistant and durable. The edges are smooth and burr-free to protect cats from scratches. Clean-line design, paintable materials, perfectly matched with your door and trim. Applicable scene: Indoor cat door, suitable for all hollow and solid doors and interior doors, perfect for laundry room, bedroom, basement, etc. You have your own space to make your home smell fresh. Accessible door design: Nobody is in the house. Store cat food indoors. The interior door adopts a cat door, so you don't have to worry about dogs entering the door. Cats can come and go freely to play, eat and drink! No falling: The indoor cat flap is installed with screws, avoiding falling and gap caused by tape installation, no noise, no problem of door locks and door damage Dimensions External dimension: 10.55"*9.05"*2.45", through hole: 6.89"*1.38", suitable for door from 0.8" to 1.78" thickness. Indoor cat doors are the safest and most convenient way to more beautiful to let your cat enter and exit through closed doors to omit.