I purchased a helium gas canister for my wife's 50th birthday party which was quickly dispatched and arrived in good time. However, I was really disappointed with the amount of gas in the canister. On the rather colourful 'french' box it told me I could easily inflate 30 balloons, but sadly we didn't get past 14 - I didn't over-inflate the balloons, we blew them to an average size. As I inflated them on the day of the party, we never had chance to get more gas. However, everyone had a good time. Great service but let down by the very average contents of a gas container.