Exercise Board

FIG. 1 illustrates a perspective view of an exercise board. FIG. 2 illustrates a top view of the exercise board. FIG. 3 illustrates a bottom view of the exercise board. FIG. 4 illustrates a front view of the exercise board. FIG. 5 illustrates a back view of the exercise board. FIG. 6 illustrates a right view of the exercise board; and, FIG. 7 illustrates a left view of the exercise board. The broken lines in the figures show disclaimed portions of the exercise board and form no part of the claimed design.