Birthday Greeting Cards - Birthday Balloons - BDB200. Greeting Cards with an Image of Colorful Balloons. Box Set has 25 Greeting Cards and 26 Lime Green Colored Envelopes. This box set contains 25 greeting cards and 26 lime green envelopes. The cards are 5" by 7" and are printed in full color. The cards are 12pt gloss coated stock with an aqueous coating to give the greeting cards a nice shine. Each greeting card has a pre-printed verse inside, which can be viewed by clicking on the verse visual. The inside is uncoated, to allow for your own personal message. This is an original design and does not include glitter, embossing or foil stamping. All of our greeting cards are created and printed in the U.S.