• Package contents: 1 40-inch balloon with numbers and 1 straw. • Material: numeric balloons made of high-quality aluminum foil, not easy to explode and spill. • Easy to use: can be easily inflated with a simple inflation tube in just a few minutes. Can be filled with air or helium. • Freedom of combination: the 40-inch high number foil balloon is ideal for taking photos as a prop. You can combine several numbers such as: 10, 16, 18, 20, 30, 40, 50, 60, and other combinations. • Wide application: this number aluminum balloon is an excellent decoration for graduation parties, birthdays, weddings, bachelor parties, and other celebrations. • Product dimensions: 20 cm wide, 0.5 cm high, and 14 cm long.