The Defender Note helps prevent against accidental payment and identity theft by shielding your RFID products by blocking radio waves emitted from devices that would read them. Defender Note is capable of protecting data on any 13.56MHz RFID device, not just bank cards. The core material has been specially designed to be flexible enough to fit in most wallets, handbags and purses to cover the entirety of the contents inside them. The Defender Note has been independently tested by Digital Locksmith Limited and it's been proven it offers the highest level of shielding available. This product is a £50 note size and has been made for smaller size wallets or purses, while also having the option to be cut into smaller pieces to protect several items.