The invention provides an elastomeric expandable container (10) having a firstopening (12) adapted to enable the introduction of a comestible fluid (16)under pressure to inflate the same, and a second opening (20) provided in anipple-like projection (22) extending from said container (10) and adapted fornursing babies, said second opening (20) being closed by valve means (24), andsaid valve means (24) being opened and closed by the natural nursing actionsof the baby to enable fluid (16) to flow under pressure of the inflatedcontainer (10) through said nipple (22) and out of the opening (20) thereof.
