Infinitely adjustable beverage container holder by spin actuation

An adjustable beverage container includes an outer case having a case axis. An actuator ring, is rotatably coupled to the case. The actuator ring includes an arm extension push member and an arm retraction structure. A cover ring is fixedly attached to the case. An arm having an engagement structure including a slot or tab slidingly is engaged with the arm retraction structure of the actuator ring. The arm is also rotatably attached to the case and cover ring. The arm moves into and away from said case axis when the actuator ring is rotated relative to the case about the case axis.