FIG. 1 is a perspective view of the new design for a shower head;

FIG. 2 is a front elevational view of the new design for a shower head;

FIG. 3 is a rear elevational view of the new design for a shower head.

FIG. 4 is a left elevational view of the new design for a shower head, the right elevational view being a mirror image; and,

FIG. 5 is a top plan view of the new design for a shower head, the bottom plan view of the new design being a mirror image.

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