FIG. 1 is a perspective view of the front of an insert showing our new design;
FIG. 2 is an elevational view of the front thereof;
FIG. 3 is an elevational view of a side thereof;
FIG. 4 is a plan view of the top thereof;
FIG. 5 is an elevational view of the rear thereof;
FIG. 6 is an elevational view of the other side thereof;
FIG. 7 is a plan view of the bottom thereof; and,
FIG. 8 is a plan view of the insert in an unfolded configuration.
The broken lines in the drawings indicate fold lines and are included in the claimed design.