FIG. 1 is a bottom front perspective view of a foldable toothbrush in an extended configuration, showing my design;
FIG. 2 is a top rear perspective view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a left side elevation view of the design shown in FIGS. 1-8 thereof, but in a folded configuration;
FIG. 10 is a right side elevation view thereof;
FIG. 11 is a front elevation view thereof;
FIG. 12 is a rear elevation view thereof;
FIG. 13 is a top plan view thereof; and,
FIG. 14 is a bottom plan view thereof.
The broken lines shown in the drawings illustrate features of the article that form no part of the claim.