This invention provides a means of coupling a detachable member, like a cellular phone for example, to a rotational member, but only when the rotational member is coupled to a base member. The invention also provides a means of presenting the detachable member to the user. In one exemplary application, the invention is coupled to a console of an automobile. The detachable member is secured to the rotational member by a retention hood at the bottom of the rotational member. A sliding latch in the rotational member has a hook that engages a detente in the detachable member when the rotational member engages the base member. The invention thus holds the detachable member in a fixedly stable position when the rotational member couples with the base member.