FIG. 1 is a top, front, left perspective view of a loadable weightlifting device showing my new design in a first position;
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 side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a top, front, left perspective view of a loadable weightlifting device showing my new design in a second position;
FIG. 9 is a front view thereof;
FIG. 10 is a rear view thereof;
FIG. 11 is a left side view thereof;
FIG. 12 is a right side view thereof;
FIG. 13 is a top view thereof; and,
FIG. 14 is a bottom view thereof.
The broken lines depicting the remainder of the loadable weightlifting device show features that form no part of the claimed design.