Adjustable Frame Plug

FIG. 1 is a front perspective view of an adjustable frame plug, showing my new design fully assembled;

FIG. 2 is a rear perspective view shown in a state of use;

FIG. 3 is an exploded view;

FIG. 4 is a top view;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a front view thereof.

The broken lines depict portions of the adjustable frame plug that form no part of the claimed design.