Avery Printable Cards, Laser & Inkjet Printers, 150 Cards, 3 x 5, Index Card Size (5388) Printable cardstock lets you design and print your own customizable cards White 3x5 index cards feature ultra-fine perforations for clean and easy separation Optimized for laser &amp; inkjet printers for jam &amp; smudge-free performance, guaranteed. Add crisp text and vibrant images to both sides of your printable card. Add a personal touch to your index cards with your own design or select from thousands of free templates and designs at avery.com/templates Great for sales &amp; marketing collateral, flash cards, recipe cards, thank you note cards, invitations, RSVP cards, save-the-date announcements or 3x5 post cards