Abstract: A closure consisting of a lid and a body is provided, wherein part of the body can be depressed radially, be fixed in the depressed state and forms a recessed grip. The fixation of part 3 can be permanent and undetachable and can thus render a closure tamper proof by indicating that a closure is opened for the first time. Furthermore, an indicator plate, which breaks away when the depressible part is depressed, can additionally render a closure tamper proof. Furthermore, the depressible part can return to its original position after the lid is lifted so that when closing the lid again, the closure cannot be opened before the depressible part is depressed again. In this embodiment an indicator plate arranged on the depressible part renders the closure tamper proof, and, furthermore, the return of the depressed part into the original position renders the closure child proof.

Abstract: A closure with a self-closing valve is made available which is easily operable by exertion of pressure and has a simple design. A transport security is provided, which closes the valve reliably even in case of great stress.