Closure cap cooperating with a bottle container

The invention relates to a closure cap which cooperates with a bottle container. A catching protection is disposed on the neck of the bottle container and a lower-engaging projection (′) is disposed on the closure cap. An insert is associated with the closure cap. Said insert can be fixed to the neck of the bottle, resulting in a structurally advantageous, functionally reliable solution whereby the insert is provided with means for rotationally secure retention on the neck of the bottle and the closure cap which can be pressed onto said insert can be unscrewed from the insert.