Foldable pet box

FIG. 1 is a top, front right perspective view of a foldable pet box, showing my new design in a folded state;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a top plan view of a foldable pet box, shown in an unfolded state.

All the broken lines in the drawings depict portions of the foldable pet box that form no part of the claimed design.