FIG. 1 is a rear side perspective view of an exercise device;
FIG. 2 is a side view of the exercise device of FIG. 1;
FIG. 3 is a top view of the exercise device of FIG. 1;
FIG. 4 is a front view of the exercise device of FIG. 1;
FIG. 5 is a rear view of the exercise device of FIG. 1; and,
FIG. 6 is a bottom view of the exercise device of FIG. 1.
The ornamental design that is claimed is shown in solid lines. The dash-dash-dash broken lines illustrate environmental structure and form no part of the claimed design. The dash-dot-dash broken lines define the boundaries of the claimed design and form no part thereof.