Check the listing for details. Strongur RFID Blocking Sleeve - Package of 4 Sleeves. Color: Black, Condition: New. Listed at 4.95 USD. Don't be a victim. Protect yourself and your family against RFID theft. These RFID blocking card sleeves are thin, to fit in most wallets, while blocking RFID scanners from stealing card data. Something so simple and effective. Use these sleeves with all your credit, debit, access control, and government issued identification cards. Information taken by a wireless identity thief may include your account information, name, address, phone, Social Security Number, or employee data. Don't let an RFID thief make even a single purchase with your stolen card information. There are many ways thieves go after your credit data. These simple card sleeves stop their getting yours from just walking by their scanner. Driver's licenses and state ID cards have RFID chips in them. Ensure your identity is kept private with an RFID blocking sleeve. This is a package of 4 RFID blocking sleeves. Ships in an envelope containing a four-pack.