This pack of 48 happy birthday cards with corresponding envelopes will cut the hassle of rushing to the store. Our blank greeting cards assortment features 6 various designs with decorative retro prints and text on the front that reads "Happy Birthday." Each greeting card measures 4x6 inches with a blank interior to ensure you have more than enough space to send personalized, handwritten messages to your friends and family. You can also use the card for professional purposes at work, in the office, or in the classroom to hand out to students. Make sure you have plenty of greeting cards on hand for when occasions arise!