The present invention relates to a roll-on applicator with a filling opening and a dispensing opening which prevents leakage or spillage without the need of the cooperation of a cap. This container comprises ball (3) and a flexible and resilient support means (4) for said ball. Said flexible and resilient support means urges said ball against said dispensing opening, achieving a leak-tight engagement between said ball and said dispensing opening. Furthermore, said flexible and resilient support means can be resiliently deformed by an external force acting on said ball to disengage said leak-tight engagement between said ball and said dispensing opening, allowing said contained product to be spread by said ball.