The invention has other advantages. In particular, the cover 31 is cap mould, since it is associated with the base part 4 of the closure 1 via the strap 3 and the ring 29. The tamper-evident element 53 is also cap mould, since it remains connectedto the ring 29. This presents in particular additional safety vis-a-vis children, who cannot raise said tamper-evident element 53 to their mouths. Naturally, the various embodiment described can be combined with each other, the invention not beinglimited to the particular configurations depicted in the drawings.