FIG. 1 is a perspective view of a retaining block according to my new design, as viewed from the front, top, and one side of the block.
FIG. 2 is a front view of the retaining block of FIG. 1.
FIG. 3 is a side view of the retaining block of FIG. 1, the opposite side being a mirror image thereof.
FIG. 4 is rear view of the retaining block of FIG. 1.
FIG. 5 is a top plan view of the retaining block of FIG. 1; and,
FIG. 6 is a bottom plan view of the retaining block of FIG. 1.
The broken lines in the drawings that are immediately adjacent to the shaded areas represent an unclaimed boundary of the claimed design. The broken lines showing the remainder of the retaining block are for illustrative purposes only and form no part of the claimed design.