1.Material：Aluminum, Aluminum foil papr /PVC

2.Size：Normal 88x59mm90x60mm or 135x92mm or Customized

3.Printing：Custom Full color 4c/4c printing

4.Craft：Spot UV , silver /gold hot stamping

5.Function：CXJ Group RFID Blocking Sleeve Envelope could prevent RFID enabled credit cards, payment cards, ID cards, driver's licences and all RFID 'smart cards' from being illegally scanned