Abstract: A container for storing two components separately and then mixing them prior to use includes a housing having an opening and a neck portion, a displaceable member, and a closure member. The housing is formed with a first compartment and a second compartment intercommunicating at the neck portion. The displaceable member has a partition wall for sealing the neck portion. The displaceable member is formed such that the partition wall moves from a non-sealing position in which the first and second compartments intercommunicate to a sealing position in which the neck portion is sealed. The displaceable member also may feature at least one conduit for allowing introduction of a component through the opening into the housing. The closure member seals the at least one conduit of the displaceable member and/or the opening of the housing. The displaceable member may be moved by rotating, pushing or pulling and may be moveable by a portion exterior to the housing.