Abstract: A ball batting practice and training device comprised of a frame having a top and a bottom defining a vertical axis between them, and a pair of vertical support elements spaced from the vertical axis and from another. The frame carries a continuous circuit of line comprised of a first section of non-elastic line which slides through the top and the bottom of the frame defining a substantially vertical axis, and which non-elastic line is connected at both of its ends to a section of elastic line. The section of elastic line is connected to one of the vertical support elements to hold it in position. A to-be-batted ball is tethered to the first section of non-elastic line intermediate to the top and bottom of the frame, and may be selectively positioned at various heights along the vertical axis. A second non-elastic line is connected in series between the first vertical support element, the ball, and the second vertical support element.