RFID Blocking Cards 5 Pack Premium Contactless NFC Debit Credit Card Passport Protector Blocker Set for Men & Women, Smart Slim Design Perfectly fits in Wallet/Purse (Black)

To my knowledge they work extremely well

Brilliant item and price. New years gift to our family and friends to keep them cards safe

Very pleased with these RFID & NFC cards. I have given them to members of my family. I have tried them out and they work perfectly. Nothing is 100% safe but I do have confidence that these cards will give me some security. I obviously take as much care as possible to keep my credit and debit cards safe.

The RAFID & NFC Blocking Card states that it possesses the latest 13.56MHZ electronic blocking technology for the protection of bank cards from illegal scanning. It has not been tested by me at this time and I am unable to verify its effectiveness in a genuine situation to date. I may be able to verify its effectiveness at some future date. (I am pleased to say that it did not set off alarms when I visited a TESCO store in Portsmouth!)

Great little card keeps my money secure

I read several of the 1 star reviews, it works if you use two cards and sandwich your credit card between them, I tested it on several different machines at restaurants and supermarkets and each time my payment would only work when I removed the credit card from between the 2 blocking cards. Very pleased with it.

They are looking good ,I had the 5 pack so I gave my family some to keep safe from scammers

Dose the job