Component for a fixed translation of frame_b with respect to frame_a, i.e., the relationship between connectors frame_a and frame_b remains constant and frame_a is always parallel to frame_b.
By default, this component is visualized by a cylinder connecting frame_a and frame_b, as shown in the figure below. Note, that the two visualized frames are not part of the component animation and that the animation may be switched off via parameter animation = false.