Abstract: A flexible elongated tubular neck having an accordion shape that is rigidly mounted to a container containing liquids, and having an upper opening, that permits a user to readily pour out the content into a reservoir without the need of a funnel and without the risk of spillage. This elongated tubular accordion shaped neck has a threaded tubular end to cooperatively receive a threaded cap thereto, and also has sufficient length so that a user can extend it and locate the threaded tubular end next to a reservoir so that the liquid content can be transferred from the container to another reservoir. The elongated tubular accordion shaped neck includes locking means mounted to its internal wall, wherein the locking means includes a plurality of plates radially and inwardly extended, and at least one protuberance and a cavity in coaxial alignment with respect to each other. When the accordion shaped neck is in compressed position, the protuberances engage within the cavities located in another adjacent plate.