FIG. 1 is a front view of a coupling of my new design;
FIG. 2 is a top view, thereof;
FIG. 3 is a bottom view, thereof;
FIG. 4 is a top perspective view, thereof;
FIG. 5 is a bottom perspective view, thereof;
FIG. 6 is a front view of a coupling receiver;
FIG. 7 is a left side view, thereof;
FIG. 8 is a rear view, thereof;
FIG. 9 is a top view, thereof;
FIG. 10 is a bottom view, thereof;
FIG. 11 is a front perspective view, thereof;
FIG. 12 is a rear perspective view, thereof;
FIG. 13 is a front view of the coupling of FIG. 1 inserted into the coupling receiver of FIG. 6;
FIG. 14 is a right side view, thereof;
FIG. 15 is a rear view, thereof;
FIG. 16 is a left side view, thereof;
FIG. 17 is a top view, thereof;
FIG. 18 is a bottom view, thereof;
FIG. 19 is a front perspective view, thereof; and,
FIG. 20 is a rear perspective view thereof.
FIGS. 1-12 are shown separated for ease of illustration.