MACO® Unruled Microperforated Laser/Inkjet Index Cards, 3 x 5, White, 150 Cards, 3 Cards/Sheet, 50 Sheets/Box (MACML8576) Box of 1500MACO Unruled Microperforated Laser Inkjet Index & Post Cards Create your own high impact designs on this premium quality card stock. Micro perforated for easy separation and guaranteed perfect edges every time. Cards won't jam. For use on your laser and inkjet printers. Compatible with most label printing software programs. Acid free and lignin free. Global Product Type: Unruled Index Cards Ruling: Unruled Card Size (H x W): 3 x 5 Color(s): White