Our party helium tanks contained 0.42 m3 of helium. They are designed to fill just a few balloons for home parties or small office parties etc. They are available to buy on their own (i.e. no balloons) or complete with a bag of multicoloured 50 x 9 inch latex balloons and small roll of white ribbon. Please note these figures are the manufacturer’s maximum figures and are based on not over inflating the balloons and not losing any helium as you inflate.