Cpolebev Pet Dog Screen Door 13.4inchX17.3inch Door with Magnetic Flap Lockable Dog Door for/Door, Window and Porch - White

Only use on screen door, window or other screened areas. Before installtion, please prepare cutter knife and screwdriver to install this dog door for screen door. 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. Upgrade doggy door made of high temperature PP material. The door is not easily damaged by prolonged exposure to the sun. Reinforced door hinge parts can better withstand dog swinging in and out during use. About this item: [ Easy access for small pets] Pet screen door can make your dogs and cats go in or out freely enough without for your help to open the door, great for your pet potty break or . need to be installed base on the pet's height, fit most breed cats and small dogs.