Keeps the cold out! Highly recommended.
The cat flap provides excellent insulation in a living space with an open kitchen and an outside door. We had a carpenter install the flap for us. It took a little while to train our cat to use it. From day one, we installed all three flaps, as it does require a bit of force for the cat to push through. This way, our cat got used to it straight away. The closing panel is easy to attach to keep your pet inside.