Step Stool

FIG. 1 is a top perspective view of a step stool showing my new design.

FIG. 2 is a bottom perspective view threrof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an enlarged detail view taken from portion 9 of FIG. 3 .

The broken lines in the drawings depict the boundaries of the enlarged view in FIGS. 3 and 9 of the step stool that form no part of the claimed design.