FIG. 1 is a back elevational view thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a perspective view of a mop head, embodying our new design; and,

FIG. 5 is a side elevational view, the other side being a mirror image thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.