FIG. 1 is a perspective view of a handheld magnifier showing my new design;

FIG. 2 is a front elevation view;

FIG. 3 is a bottom elevation view, the opposite side elevation is identical;

FIG. 4 is a rear elevation view;

FIG. 5 is a right side elevation view; and,

FIG. 6 is a left side elevation view.

The broken lines are for illustrative purposes only and forms no part of the claimed design.