Size M: outer size: 19 x 20 x 5.5cm (W x HXT); inner size: 14.5 x 15.5cm (W x H); cutout size: 16 x 17cm (W x H) ); suitable for cats up to 16 lbs , Suitable for any wall or door up to 50 mm thick ; Cat Door: A great solution for allowing your cat access to any interior space while giving you full control. Perfect for accessing the bedroom or even accessing food or litter when guarded behind closed doors to keep the dog and children away. Simple and good design: The transparent flap allows the pet to see through the door. The outer screen is waterproof. The brush strip reduces noise when closing the door. Easy Installation: Full instructions allow for easy installation in windows, doors, closets, etc. 4 switching modes: switches on only, on only, on and off, and fully locked, easy control of your pet entering and exiting. Interior cat doors. gives your pet convenient access to food, water or litter behind closed doors. With this cat flap, your cat will be satisfied and love the
