Paperworks Postcards are specifically designed for use in all copiers, lasers, and ink-jet printers.  Most formats are available in either a 67lb Vellum Bristol lightweight card stock, or a heavier 65lb cover stock .  This package contains 250 sheets of 8-1/2x11 card stock that we precision micro-perf allowing for clean and easy separation into 4 cards per sheet, yielding 1000 finished post cards.  The finished card size is 4-1/4x5-1/2. Need a special stock made into pre-perfed postcards?  Just inquire and we can create it for you.