Pet screen door can make your dogs and cats go in or out freely enough without asking for your help to open the door, great for your pet potty break or playtime.

Use a flat-head screwdriver to separate the door so you have 6 parts, 2 of door frames, flaps and locks. Inner Door flap didn't come with a screen insert, need to put this on a screen you already own, then cut down the screen against the frame and place it inside the flap.

Comes with upgraded screws with nuts would hold the outer frame and flap to prevent the door from separating and falling. It's easier with two people to install.

Swings both ways. Magnets slow the door down and stop it in place after 3-4 swings. you can lock the door to stop pets in and out, double-sided lockable.

Inner door hole size: 11 x 13 inches; Outer frame size: 13.4 x 17.3 inches, need to be installed base on the pet's height, fit most breed cats and dogs, but not suitable for especially little kittens and puppies because this door may too heavy.