Bright white cardstock is ideal for recipes, homework, filing, and more. Custom printed index cards are consistent, easy to read, and easy to update. Ultra-fine perforations let you separate cards cleanly and easily. Easy to customize with free designs and templates from Avery Design & Print. Cards with Sure Feed™ technology are designed for a reliable printer feed and to prevent jams and mis-alignments. 8.5" x 11" sheets for laser and inkjet printers.This product was made using wood sourced from a certified managed forest.