The ornamental design for a baseball batting stride device, as shown and described.
FIG. 1 is a perspective view from above and the side, looking down (at about 45°C) at the invention in an open (unbuckled) unused configuration;
FIG. 2 is a view simmilar to FIG. 1, except with the matable half of the hook-and-loop strip in an alternate position, threaded through the aperture formed in the end of the buckle;
FIG. 3 is a view similar to FIG. 2, except for the alternate position of the strip encircling a batter's foot, the broken lines showing the human form being for illustrative purposes only; and forming no part of the claimed design; and,
FIG. 4 is a view simmilar to FIG. 3, except for the alternate, mated position of the hook and loop strip.