One 3 color Mickey Mouse 1st Birthday Coordinating Latex Balloon Set. Each set includes: 8 lime green, 8 pastel blue, and 8 mimosa yellow latex balloons. All 24 balloons are 12 inch, helium quality latex balloons. /> Please note that balloons do not ship inflated. Fill your balloon with helium, which can be purchased at florists, supermarkets, and party supply stores.