Review on Faraday Box: Protect Your RFID Signals with Style! by Mike Hamelin

I bought this box after reading that thieves use relay boxes to steal cars. I read about it after one day discovering the back door of my car was wide open and my car was digging in it. I don't know how it opened. It's most likely my fault for pressing the button in my pocket while sitting in the kitchen (about 20 feet from my parked car). But it made me paranoid. The box is the perfect size for both keychains. I can also throw my wallet diagonally (but really only for keychains). It works for what I need, so I'm happy.