the invention relates to a plastic closure for dispensing thixotrope fluids from a flexible bottle . said closure has a bottom part comprising a cover surface with a spout opening . beneath the cover surface a support surface is provided , in which several axially extending through - passages are disposed , which are radially offset relative to the spout opening . the support surface comprises partial elements in the form of tongues , which are integrally formed on an annular jacket wall by way of integral hinges , which engage in a pin in the installed state . this results in a closure that can be manufactured particularly inexpensively , is simple to install , and can be produced in one piece .