Whitelotous 3 Size 4 Way Pet Cat Puppy Dog Lockable Safe Flap Door Give your cat the freedom to come and go as he or she pleases with this cat flap that has a 4 way locking system. Slide the locks on the bottom of the flap to set the door to one of the following Cat can only enter from the outside but not go out again Cat can go out but can not get back in (for preventing other cats also entering) Flap is locked from both sides Flap is completely open and cat can come and go at will