3 Size Signal Blocking, Anti-Radiation, Anti-Hacking Mobile Carrier

Function: Anti-Radiation, Heavy Duty Protection, Card Pocket, Anti-knock, Dirt-resistantCompatible Brands: Apple; SamsungFeature 1: PROTECT CREDIT CARDS from RFID skimming and location trackingFeature 2: TRAVEL FRIENDLYFeature 3: DIGITALLY TESTED for quality assuranceMaterial: DURABLE MATERIALSize: POCKET SIZE/Phone SizeSmall size Use for: Car key, Bank Card , RFID CardMiddle size use for: For phone less than 4.7inch. or car key , bank cardBig size use for: For all ( phone ,card , car key,etc )Feature 4: FITS CELL PHONE SCREENS up to 5.8