Size M: External dimensions: 19 x 20 x 5.5 cm (W x HXP); Internal dimensions: 14.5 x 15.5 cm (W x H); Cutout size: 16 x 17 cm (W x H); Suitable for cats up to 16lbs, fits any wall or door up to 50mm thick.Cat Door: A great solution for giving your cat access to any space interior while giving you complete privacy to give control. Perfect for bedroom access or even access to food or litter when stored behind closed doors to keep the dog and children away. Simple and Good Design: Clear flap allows pet to see through the door. The outer screen is waterproof. The brush strip reduces noise when the door is closed. Easy Installation: Full instructions allow for easy installation in windows, doors, closets, etc. 4 switch modes: power off only, power on only, power on and off, and full lock, simple control your pet in and out. Indoor cat flaps provide your pet with convenient access to food, water or litter behind closed doors. With this cat flap, your cat will be happy and love the freedom
