A Happy Birthday banner made from individual foil letter balloons in a gold and blue macaron color finish. Each letter is its own balloon and links to the next, so you can spell the greeting out along a wall, table edge or photo backdrop at a birthday party for girls, boys, kids or adults. Size: 16 inch is the letter size — the measurement of each individual letter, not the finished banner. The overall width depends on how far apart you space the letters when you hang them. Packed, the set has a net weight of 10 g and measures 100 x 100 x 50 mm (3.9 x 3.9 x 2.0 in). Setup: the letters arrive uninflated. Inflate each one with air until the seams sit smooth, then link them together in order to form the banner. Care: keep the balloons away from heat, direct sunlight and sharp edges, wipe with a dry cloth only, and store them flat and deflated if you want to reuse the set.