RFID smartphone pocket protects your personal data stored electronically on credit cards, etc^Hidden Aluminum foil coating between PU panels for RFID (Radio Frequency Identification) identity theft protection.^Removable 3M adhesive back for placement on smartphone, cell phone or mobile device.^Non-residue 3M adhesive sticks to the back of your mobile phone^Single pocket doubles as a wallet - insert transit cards, credit cards, IDs, and business cardsItem Size: 2.44w X 3.62h X 0.125dImprint Area: Front Pocket 1.63w X 1.88h