Rocket Balloons with Air Pump 15-Count These rocket balloons can be inflated up to 40-inches in length, Let them go and watch them zoom skyward. The rocket balloon pack contains fifteen latex balloons in various colors, plus air pump. Rocket balloons can be re-used after every flight for hours of entertainment. Suitable for outdoor entertainment, these rocket balloons are great entertainment for parties and other events. Recommended for ages 8 years and up.