Hair brush

[0001]FIG. 1 is a bottom, front perspective view of an ornamental design for a hair brush according to the present invention;

[0002]FIG. 2 is top, front perspective view of the hair brush of FIG. 1;

[0003]FIG. 3 is a front elevational view of the hair brush of FIG.1;

[0004]FIG. 4 is a rear elevational view of the hair brush of FIG. 1;

[0005]FIG. 5 is a left elevational view of the hair brush of FIG.1;

[0006]FIG. 6 is a right elevational view of the hair brush of FIG.1;

[0007]FIG. 7 is a top plan view of the hair brush of FIG. 1; and,

[0008]FIG. 8 is a bottom plan view of the hair brush of FIG. 1.

[0009]The broken line showing of FIGS. 1-8 is for the purpose of illustrating environmental structure and forms no part of the claimed design.