FIG. 1 is a front perspective view of a toothbrush according to a first embodiment of the new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof,
FIG. 6 is a right side elevation view thereof;
FIG. 7 is an enlarged top plan view thereof;
FIG. 8 is an enlarged bottom plan view thereof;
FIG. 9 is a front perspective view of a toothbrush according to a second embodiment of the new design;
FIG. 10 is a rear perspective view thereof;
FIG. 11 is a front elevation view thereof;
FIG. 12 is a rear elevation view thereof;
FIG. 13 is a left side elevation view thereof,
FIG. 14 is a right side elevation view thereof;
FIG. 15 is an enlarged top plan view thereof; and,
FIG. 16 is an enlarged bottom plan view thereof.
The broken lines in the drawings formed by linear segments of equal length illustrate portions of the toothbrush that form no part of the claimed design. The dot-dash broken lines in the drawings illustrate an unclaimed boundary. Differences in grayscale indicate a difference in color with no specific color being claimed.