3" x 5" White Index Card, 4 Cards per Sheet (250 Sheets per carton) - this 60# card stock offers excellent printability. Our 60# card stock has a caliper of 7.4 mil (+/- 3%), a 98% opacity, and a 96% brightness rating. This product has a shelf life of one year when stored at 70°F and 50% relative humidity.
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