Abstract: The container has an end wall which is weakened along an open line defining the outline of a lid and of a corresponding hole, and a lever member which is connected to the outer face of the end wall of the container and can be operated manually to tear the wall along the weakened line and to deflect the lid thus formed from the plane of the end wall. A mouthpiece connected to the portion of the wall, which is intended to form the lid, is disposed inside the container before the wall is torn and, after the tearing, can be entrained by the lever member and by the lid through the corresponding hole formed in the wall to a position of use in which its end, which is inside the container, abuts the wall.