PURPOSE: To solve a problem of a flute clogging by an excess liner material in a filling zone and a discharging zone to be experienced in the case of the liner used for lining a flexible intermediate discrete material container.

CONSTITUTION: The variable diameter hollow extruded article 20 comprises an integral unitary flexible wall 22 defining a body section 24 and at least one spout sections 30, 34 in such a manner that the diameter of the spout is substantially smaller than tat of the body section. In some example, a thickness of the wall for forming the spout section is substantially thicker than that of the wall for forming the body section.