FIG. 1 is a perspective view of a chair arm embodying our design;
FIG. 2 is a front view of a chair arm embodying our design;
FIG. 3 is a left side view of a chair arm embodying our design;
FIG. 4 is a rear view of a chair arm embodying our design;
FIG. 5 is a right side view of a chair arm embodying our design;
FIG. 6 is a top view of a chair arm embodying our design;
FIG. 7 is a bottom view of a chair arm embodying our design; and,
FIG. 8 is a perspective view of the chair arm embodying our design.
The broken lines showing an outline of a chair and certain features of the chair are for illustrative purposes only, and form no part of the claimed design.