Bring your essential cards with you wherever you go with help from the Cardsafe cellphone wallet. Our RFID blocker sleeves are made of a special paper material that includes a special metal alloy using a patented process to protect your data.This handy and useful travel aid will fit credit/debit cards, enhanced driver's licenses and more and attaches to the back of your phone with removable 3M® adhesive. It features RFID (radio frequency identification) technology to prevent identity theft. GSA FIPS 201 approved. Cell phone wallet attaches to back of cell phone with removable 3M® adhesive. Conveniently holds two credit cards or ID's. It measures just 2 mm thick and can be customized with an imprint of your brand logo. What a great giveaway for banks, schools and more!