Self-closing dispensing device

A device for dispensing a flowable substance, comprising a rigid first main part having side walls and formed in the shape of an open channel and having at one end a channel-shaped dispensing opening, and a second main part which is formed in the shape of a channel and comprised of a resilient material and having a shape complementary to the first main part so that the first main part and the second main part can be joined together to form a closed dispensing container, the second main part having a closure part which is complementary to the dispensing opening of the first main part and which lies resiliently against said dispensing opening at an angle thereto, a resilient end-wall which contacts the side walls of the first main part at two places located inwardly of the dispensing opening, and a closure wall which is formed integrally with said resilient end-wall and, in a non-assembled state, is located essentially in a plane with said end-wall and having a length which is greater than the depth of the open channel such that, in an assembled state, the closure wall constitutes the closure, said end-wall having a material thickness which is greater than the material thickness of the second main part other than an end-wall such that during operation said second main part will be deformed elastically in the vicinity of said end-wall and to a greater extent than said end-wall whereby pressure applied to said end-wall will cause said wall to pivot at said two places against a spring force that derives from the deformation of said second main part and said closure to swing away from the dispensing opening of said first main part.