a preform for a container comprised of orientable plastics material and arranged so that the resultant blown container will include a hollow handle ; said preform comprising a moulded structure having a neck portion and an expandable portion below the , neck , a hollow handle portion of orientable plastics material integrally connected at least at a first end to said preform which when the container is formed constitutes said handle , and wherein interior surfaces of said hollow handle portion form a continuum with interior surfaces of said expandable portion .