After confirming the cat can go out independently, you should start considering installing a cat flap. Cat flaps allow cats to come and go freely. When installing, pay attention to the height, about 15 centimeters from the ground. Most cats quickly learn to use cat flaps.

　　Choosing a Cat Flap

　　There are many types of cat flaps, some easy, some difficult. Some can open both inward and outward; some only inward, allowing the cat to enter but not exit; others have locks to prevent cats from going out at night. The most expensive type is electromagnetic, which only opens the flap when the magnet on the cat’s collar is near. This prevents other cats from entering the house.

　　If the cat is initially reluctant to approach the cat flap, place it near the door and prop the flap open.

　　Encourage the cat to go through the flap by using food outside the door to lure it out, or gently carry the cat outside.

　　It won’t take long for the cat to learn to push open the flap. If the cat has difficulty passing through, it may be because the flap opening is too high from the ground.

　　Lockable Cat Flap

　　Locking prevents the cat from going out at night.

　　Standard Cat Flap

　　No lock, cannot prevent stray cats from entering. (Source：PetsZone)