One metre long. The top end fits both the main Input/Exit plug of the
Helikite balloon and also the topping up non-return valve. The lower
end comes with various sizes of tubing adaptors to enable it to fit to
various possible helium cylinder regulator valves and nozzles. This
tubing is only to be fitted to low pressure gas coming from the low-
pressure outlet nozzle of a legally recommended gas regulator
valve.