SAFE AND DURABLE: The indoor cat door is made of ABS material, which is wear-resistant and durable. The edges are smooth and burr-free to protect cats from scratches. Sleek line design, paintable materials, perfectly match 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: No one is in the house. Keep cat food inside. 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 door is installed with screws, avoiding falling and gap caused by tape installation, no noise, no trouble of door locks and damage to the door Dimensions External dimension: 12.2"*10.62"*2.16", through hole: 8.66"*1.38", suitable for 0.8"-1.78" thick door. Indoor cat doors are the safest and most beautiful way