Ruled Index Cards, On 80lb Heavyweight Thick White Cover Stock."100 Cards per pack" (4 x 6) 100 sheets of Ruled Index Cards | Ruled on one side, blank on one side for easy note taking Made from 80 lb heavyweight Cover Stock (216 GSM). Works great for home, office, interoffice, or school. These index cards are great for making to-do lists, recipe cards, quick reminders, flashcards, master lists and much more. Perfect Use for Laser, Ink Jet and Offset Application 100 sheets per pack