SECURE PRIVACY PROTECTION: With advanced RFID blocking technology you won't have to worry about identity theft of your credit card any longer RELIABLE TECHNOLOGY - All 13.56 MHz cards invisible to the nearby scanners, this RFID and NFC signal protection card will most certainly become your favorite accessory. PREMIUM MATERIAL: Made of resistant material which is durable, tearproof and water resistant Size: 3.8"(Length) x 2.6"(Width). Cards fit nicely in the sleeves. It may not fit in your Wallets/Purse Credit Card Slot.