US D464798 S1
FIG. 1 is a perspective view of my ornamental design for a stepped bristle array for a toothbrush head;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a side view thereof, the opposite side being a mirror image of that shown.
The structures shown in phantom or broken lines in the Figs. form no part of the claimed design and are included only to illustrate an environment.