Extension Arm

FIG. 1 is a front isometric view of a extension arm showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front isometric view of the extension arm in an extended position.

The portion of the extension arm depicted in the figures in broken lines forms no part of the claimed design.