Extension arm

Description

FIG. 1 is a front perspective view of an extension arm, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings illustrate the portions of the extension arm, which form no part of the claimed design.

Claims

The ornamental design for an extension arm, as shown and described.