30 pieces of balloons 30 pieces of strings 1 piece of disposable aluminium cylinder, that contains 13,8 l pressurized Helium enough for 30 pieces of balloons (22 cm in diameter)
Ways of inflating the balloons:
28 cm in diameter/ 11” = approx. 17 latex balloons 22 cm in diameter/ 9” = approx. 30 latex balloons
