FIG. 1 shows a perspective view of a lift insert according to a first embodiment of the present invention.

FIG. 2 shows a front view of the lift insert of FIG. 1.

FIG. 3 shows a right side view of the lift insert of FIG. 1.

FIG. 4 shows a rear view of the lift insert of FIG. 1.

FIG. 5 shows a left view of the lift insert of FIG. 1.

FIG. 6 shows a top view of the lift insert of FIG. 1; and,

FIG. 7 shows a bottom view of the lift insert of FIG. 1.