Closing device for releasably connecting two parts, comprising - a first closing part which has a first engaging projection (220, 221) for forming a first engaging device, - a second closing part which has a second engaging projection (320, 321) for forming a second engaging device, wherein the first closing part and the second closing part can be attached to each other in order to close the closing device by the first engaging projection (220, 221) and the second engaging projection (320, 321) being able to be brought in an engaging direction into engagement with each other in a positive locking manner such that, in a closed position in which the first engaging projection (220, 221) and the second engaging projection (320, 321) are in engagement with each other in a positive locking manner, the first closing part and the second closing part are mechanically connected to each other, and - a magnetic device (25, 35) which acts between the first closing part and the second closing part and is designed to assist the attaching of the first closing part and the second closing part to each other by providing a magnetic attraction force, characterized in that the first closing part has an additional engaging projection to the first engaging device and the second closing part has an additional engaging projection to the second engaging device, wherein the additional engaging projection to the first engaging device is offset along the engaging direction with respect to the first engaging device and the additional engaging projection to the second engaging device is offset along the engaging direction with respect to the second engaging projections (320, 321), wherein two first engaging projections (220, 221) are arranged on the first closing part and two second engaging projections (320, 321) are arranged on the second closing part, wherein the first engaging projections (220, 221) for forming the first engaging device and the second engaging projections (320, 321) for forming the second engaging device each extend at an angle to one another, wherein the additional engaging projection to the first engaging device and the additional engaging projection to the second engaging device are each extended transversely with respect to the engaging direction. - a first closing part which has a first engaging projection (220, 221) for forming a first engaging device, - a second closing part which has a second engaging projection (320, 321) for forming a second engaging device, wherein the first closing part and the second closing part can be attached to each other in order to close the closing device by the first engaging projection (220, 221) and the second engaging projection (320, 321) being able to be brought in an engaging direction into engagement with each other in a positive locking manner such that, in a closed position in which the first engaging projection (220, 221) and the second engaging projection (320, 321) are in engagement with each other in a positive locking manner, the first closing part and the second closing part are mechanically connected to each other, and - a magnetic device (25, 35) which acts between the first closing part and the second closing part and is designed to assist the attaching of the first closing part and the second closing part to each other by providing a magnetic attraction force,