Abstract: The stick of single-dose plastic bottles comprises a plurality of bottles (1) connected together separably by at least two rows of tabs (3, 5) at the base or foot of the stick, and in another, remote position, and the rupture lines (3C, 5A) for separating and using the bottles are not aligned. This stiffens the stick so that it resists deformations which would otherwise be possible along coaxial rupture lines.