Shelf unit

Description

FIG. 1 is a top perspective view of a shelf unit;

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a front elevational view thereof.

The broken lines in the drawings form no part of the claimed design. A rear elevational view is not shown because it is identical to the front elevational view shown in FIG. 3.

Claims

The ornamental design for a shelf unit, as shown and described.