Holds two 30 mil (750 mic) cards. Locks cards into holder by snapping end piece into place. Special key (sold seperately 1840-6615), kept by badging offical, can unlock holder for card replacement. Tamper-proof feature especially popular.
Max card dim 3 3/8 x 2 1/8" (86x54mm)
Outside dim 3 7/8 x 2 1/2" (98x63.5 mm)