It's always good to have a birthday card on hand, don't you think? If you are anything like me, it's always that last minute I remember to send out a card. This set comes with 5 cards for her and 5 for him, making it easy not to have an excuse to miss a birthday. Cards measure 4" x 6" Set of 10 Flat card Stamp placeholder and address lines printed on the back of the postcard. Envelopes not included Paper thickness: 0.13″ (0.34 mm) Laminated feel Comes packaged in a clear bag.