Post-Cards and can support Fractional-Size currency or Foreign Bank Notes. 

Holder opens on the long side and can display post cards 5-7/8" x 3-3/4"

Exterior Dimensions: 6 1/8 x 3-7/8

Interior Dimensions: 5-7/8 x 3-3/4

Extra Heavy-Duty, 16 mil thick front and rear panel Currency Holders, are made from a crystal clear PVC and contains no plasticizers or stearates. This high impact grade PVC does not migrate and will not harm your currency.