Display Unit Insert

FIG. 1 is a perspective view of a display unit insert showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof; and,

FIG. 5 is a top view thereof.

The dash-dash-dash broken lines depict portions of the article that form no part of the claimed design; the dash-dot-dash broken lines represent the boundary of the claimed design and forms no part thereof.