mayday card sleeves 56x87 Standard USA Chimera (57.5x89mm) Card SleevesCard Sleeves Mayday card sleeves: Standard USA

135*92mm for passport sleeve or customized Minimum Order Quantity: 1000 pieces Sample: Free sample for test and shipping cost collection by customer Company Brand: Chuang Xin Jia Product Details RFID protection sleeves for credit card and passport RFID Sleeves are made from a durable coated paper with aluminum foil that blocks radio waves and prevents scanners from reading through the chip inside your cards or passport

There is also the Shooter Majestic that came out recently if it is a continuous attack, but since it is a little troublesome to prepare for it, this one that can be used simply by stacking synchros is easier to perform multiple attacks

If you're interested in the competitive successes of those cards, I'd recommend reading my DP-SF article

Testing indicates that this product will typically degrade in a year or more, depending on local conditions