A closure device having a first closure part comprising a body , and a second closure part , said closure parts for closing the closure device are placable against one another along a closing direction (X) and in a closing position being connected to one another, at least one locking element which is disposed so as to be adjustable on the body of the first closure part , and at least one engagement portion which is molded on the second closure part , wherein the at least one locking element and the at least one engagement portion in a closing position are mutually engaged in such a manner that the first closure part and the second closure part are locked to one another, characterized in that the first closure part has a first magnetic installation and the second closure part has a second magnetic installation , wherein the first magnetic installation and the second magnetic installation when placing the first closure part and the second closure part against one another mutually interact in a magnetically attracting manner, and the at least one locking element is magnetically configured in such a manner that the at least one locking element in the closing position by way of the first magnetic installation and/or the second magnetic installation is loaded in the direction of engaging with the at least one engagement portion , wherein closure device comprises an adjustment part which is activatable in an activation direction (B) so as to bring the at least one locking element to disengage from the at least one engagement portion in order to release the first closure part and the second closure part from one another, wherein the first magnetic installation is disposed on the adjustment part and is adjustable conjointly with the adjustment part in such a way that the magnetic attraction forces between the first closure part and the second closure part are reversed into a repulsion by adjusting the adjustment part . a first closure part comprising a body , and a second closure part , said closure parts for closing the closure device are placable against one another along a closing direction (X) and in a closing position being connected to one another, at least one locking element which is disposed so as to be adjustable on the body of the first closure part , and at least one engagement portion which is molded on the second closure part , wherein the at least one locking element and the at least one engagement portion in a closing position are mutually engaged in such a manner that the first closure part and the second closure part are locked to one another, wherein closure device comprises an adjustment part which is activatable in an activation direction (B) so as to bring the at least one locking element to disengage from the at least one engagement portion in order to release the first closure part and the second closure part from one another, wherein the first magnetic installation is disposed on the adjustment part and is adjustable conjointly with the adjustment part in such a way that the magnetic attraction forces between the first closure part and the second closure part are reversed into a repulsion by adjusting the adjustment part . <EOS>