Secrid Cardprotectors Feature a Patented Mechanism That Works as a Firewall, Ensuring That Any Rfid & Nfc Cards Are Safe From Being Activated, Selected or Copied by Digital Fraudsters. with Two Cardprotectors to Hold Double the Content, the Twinwallet Holds 8-12 Protected Cards, Plus 4 Extra Cards. This Premium Product Features a High Gloss Metal Lever, Premium Quality Leather Finishes & Can Hold Metal Cards. Please Call for Additional Information on Colours & Finishes, Plus Pricing on Premium Finishes, Custom Sleeves & Insert Cards Minimum Quantities Apply.