The ornamental design for a squeegee head, as shown and described.
FIG. 1 is a perspective view showing the new design for a squeegee head;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a right side view thereof, the left side view being a mirror image thereof; and,
FIG. 7 is a perspective view of the squeegee head shown attached to a long handle.
The broken lines in the drawings are shown for illustrative purposes only and form no part of the claimed design. In addition, the surface shading illustrated in the drawings is provided merely to highlight the contour of design; it is not intended to be illustrative of texture or gloss.