Rigid shielded 2-card polycarbonate holder protects 13.56 MHz RFID technology smart cards including MIFARE, iClass, PIV, CAC, TWIC and FRAC cards. Thumbnotches for easy card removal. Made in USA. Meets BAA and TAA Acts. Slot pull strength of 89 lbs. Max insert size 3.38″ x 2.13″. Pack of 50.