1840-6045 Clear Plastic Vertical Permanent Locking Card Holder, 2.125" x 3.375" (Qty. 100)
 
These data/credit card size holders feature a locking end piece (included) that snaps permanently into place, locking cards inside. Holder must be broken to remove the cards. Holds two 30mil (750mic) cards.
 
Vertical top-load format
.25" thick polycarbonate front and back
Slot and chain holes for easy attachment