I live in a rv and Ive seen this a few times and thought I would give it a try. it came in a plastic bag and was in great condition. So got it out and couldn't believe how easy it was to put up on the rv door. easy instructions too.On the back it has velcro sewed into the fabric, and there are strips for the other side to put on the door frame and tacks are supplied to put on the piece of velcro that is on the door frame and bam goodbye bugs. its great to when the grandbabys come they can get in and out easy. I have to say the dogs love it to, they can see out now.