The balloons are supplied flat packed ready to be filled with helium by you.
Canisters of helium are available as an add on for £32.50. Each canister will fill 1 giant 3-foot balloon to 70cm and will float for 3-5 days.
For inflation, our recommendation would be to have a tape measure, get 2 chairs and measure a space of 70cms between the 2 chairs. Blow the balloon up with the helium in between the 2 chairs until it is touching each chair and then you will know it is filled to exactly the right size to hold the weight of the tail.
The balloons are made from excellent quality latex - the balloon choice of professionals - and filled with luxury tissue paper confetti.