FIG. 1 is a perspective view of a visual aid unit for trailer hitch alignment showing my new design, it being understood that the broken lines are for illustrative purposes only;

FIG. 2 is a side elevational view of the trailer hitch ball attachment of the visual aid unit of FIG. 1;

FIG. 3 is a front elevational view of FIG. 2;

FIG. 4 is a top plan view of FIG. 2;

FIG. 5 is a bottom plan view of FIG. 2;

FIG. 6 is a side elevational view of the trailer hitch socket attachment of the visual aid unit of FIG. 1;

FIG. 7 is a front elevational view of FIG. 6;

FIG. 8 is a top plan view of FIG. 6;

FIG. 9 is a bottom plan view of FIG. 6;

FIG. 10 is a perspective view of a visual aid unit for trailer hitch alignment showing a second embodiment of my new design, it being understood that the broken lines are for illustrative purposes only;

FIG. 11 is a side elevational view of the trailer hitch ball attachment of the visual aid unit of FIG. 10;

FIG. 12 is a front elevational view of FIG. 11;

FIG. 13 is a top plan view of FIG. 11;

FIG. 14 is a bottom plan view of FIG. 11;

FIG. 15 is a side elevational view of the trailer hitch socket attachment of the visual aid unit of FIG. 10;

FIG. 16 is a front elevational view of FIG. 15;

FIG. 17 is a top plan view of FIG. 15; and

FIG. 18 is a bottom plan view of FIG. 15.