FIG. 1 is a first perspective view of a storage stool showing our new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back 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;
FIG. 9 is an exploded view of the storage stool thereof;
FIG. 10 is another exploded view thereof;
FIG. 11 is an exploded view of the storage stool in a collapsed state;
FIG. 12 is an enlarged view of the selected portion 12 in FIG. 1;
FIG. 13 is an enlarged view of the selected portion 13 in FIG. 2; and,
FIG. 14 is an enlarged view of the selected portion 14 in FIG. 2.
The evenly-spaced broken lines shown in the drawings depict portions of the storage stool that form no part of the claimed design. The dot-dash-dot broken lines in FIGS. 1, 2, 12, 13, and 14 depict the boundaries of the enlargements that form no part of the claimed design.