Dog Clothes -4-Way Lockable Dog Cat Flap Frame And Locking Cat Flap Door White Highlights Brand Generic 4-Way Lockable Dog Cat Flap Frame And Locking Cat Flap Door White Description: Give your cat the freedom to come and go as she pleases with this cat flap featuring a 4-way locking system. Slide the locks at the bottom of the sash to set the door to one of the following: Locked on both sides; Cats can only enter from the outside but can no longer exit; Cats can exit but cannot enter (to prevent other cats from entering as well); Completely open and the cat can come and go as it pleases. Made of plastic material, easy to install, simple to use. specification: Material: ABS Size: (optional) Outer door frame size: S: 20*19*2cm M: 20*19*5.5cm L: 25*23.5*5.5cm Inner door frame size: door frame: S: 16*15.7cm M: 16*15.7cm L: 19*18cm Package includes: 1x pet flap door Note: Transition: 1cm=10mm=0, 39 inch Please allow slight 0-1cm difference due to manual measurement. Colors may appear different depending on the light and how the listing is displayed. Thank you for your understanding and attention. I wish you a pleasant shopping experience