You still gotta watch the reviews on high reviews, 2017 reviews may as well have been a different century. Then you have 3 star reviewers who keep the product that didn't work and use it for another purpose. These RFID bags stop my bar stools from sliding around or something crazy. There is also one product that has 2 linings, if you don't put the product on one side of the lining it's only shielded from one side. I have one for my EZPASS and when I'm trying to jump into a car that has 2 drivers settings and detects both keys even if I'm not in the passenger seat.