Ok, This is an amazing product. It is very easy to use, affordable and very practical. If you have problems with drafts, you need to get this. We have a really bad draft, and this is very necessary. When it is cold outside, and you have the heat going, you are either wasting kerosene, fuel oil, electricity or anything you use to heat your home. This goes 2 ways. If you have your air conditioner on, you are not only wasting your cool air, but money for electricity. Those things soak up electricity. It works on windows as well as doors. So not only are you keeping out drafts making sure your home stays comfortable, but you are saving a lot of money. Another nice thing about it is that the door doesn't slam. I like that part. So whether it is cold outside or smoldering hot, you want your home to be the right temperature at all times and not let the outside weather seep in, The twin draft guards will do that for you so you will never need blankets in front of your door again.