A:Answer Hi Aron,
Thank you for your question. If you need one or two SkimSure Credit Card Protectors depend on several factors such as the material of your wallet, the distance between your credit cards etc. From the instruction manual that comes with the product: "Immediately after placing the SkimSure Credit Card Protector together with your credit and debit cards you must test its functionality to ensure that you have placed it properly. You do this by holding your wallet/purse/cell phone case/card holder, or whatever container you keep your credit and debit cards and the SkimSure Credit Card protector in, against a checkout terminal when you pay contactless for something. If the payment is successful, you need to place your credit and debit cards closer to the SkimSure Credit Card Protector."
We suggest that you buy two SkimSure Credit Card Protectors and then perform a test as in the instructions with only one SkimSure Credit Card Protector. If the test is successful you can return the one that you haven't yet opened.