The ornamental design for a portable weightexerciser, as shown and described.
FIG. 1 is a front elevational view of a portable weight exerciser showing
my new design;
FIG. 2 is a side elevational view thereof, the side opposite being
substantially a mirror image;
FIG. 3 is a top plan view thereof; and,
FIG. 4 is a bottom plan view thereof.
The cord member has been shown in fragment in FIG. 1 to indicate
indeterminate length. Portions of the weight members have been shaded to
indicate color contrast.