Homdox Plastic 4 Way Locking Lockable Pet Cat Door Small Cat Flap White (Small) Note: Ideal for cats and small dogs up to 15 pounds, Maxi pet shoulder width: 6 inch . White cat door gives your cat the freedom to come and go without bothering you. 4 Way design allows you to set door to an entrance only setting, exit only setting, two way setting, or locked setting. Choose to let your pet have full or limited access to the outdoors with a simple twist of the lock. Transparent flap lets you and your pet see what's on the other side of the door. High-impact pet door lets your dog or cat go in and out as pleased. With the pet screen door you will feel safer for your pet.