The ornamental design for a hairbrush for kids, as shown and described.
FIG. 1 is a top view of a hairbrush for kids in accordance with an embodiment of our new design;
FIG. 2 is a bottom view of the hairbrush for kids of FIG. 1.
FIG. 3 is a right side perspective view of the hairbrush for kids of FIG. 1.
FIG. 4 is a left side perspective view of the hairbrush for kids of FIG. 1.
FIG. 5 is a bottom front perspective view of the hairbrush for kids of FIG. 1.
FIG. 6 is a bottom right perspective view of the hairbrush for kids of FIG. 1; and,
FIG. 7 is a top front perspective view of the hairbrush for kids of FIG. 1.
In FIG. 2, the broken lines are for the purpose of illustrating interior boundaries of the claim and form no part of the claimed design. The flat interior surface only is defined by these broken lines.