The ornamental design for a handle for an abdominalexercise device, as shown and described.
FIG. 1 is a top, front, right perspective view of a handle for an abdominal exercise device showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a top, front, right perspective view thereof, with a weight plate shown as example environment.
The broken lines immediately adjacent to the shaded areas define the bounds of the claimed design and form no part thereof. The broken lines depicting the remainder of the article show features that form no part of the claimed design. The broken lines depicting the example environment in FIG. 8 form no part of the claimed design.