FIG. 1 is an isometric view of a front, top, and right side of an ornamental design for a brush in a closed state;
FIG. 2 is a front elevational view of the brush of FIG. 1;
FIG. 3 is a rear elevational view of the brush of FIG. 1;
FIG. 4 is a right side elevational view of the brush of FIG. 1;
FIG. 5 is a left side elevational view of the brush of FIG. 1;
FIG. 6 is a top plan view of the brush of FIG. 1;
FIG. 7 is a bottom plan view of the brush of FIG. 1;
FIG. 8 is an isometric view of the front, bottom, and right side of the brush of FIG. 1 in an opened state;
FIG. 9 is an isometric view of the front, top, and left side of the brush of FIG. 8;
FIG. 10 is a front elevational view of the brush of FIG. 8;
FIG. 11 is a rear elevational view of the brush of FIG. 8;
FIG. 12 is a right side elevational view of the brush of FIG. 8;
FIG. 13 is a left side elevational view of the brush of FIG. 8;
FIG. 14 is a top plan view of the brush of FIG. 8; and,
FIG. 15 is a bottom plan view of the brush of FIG. 8.
The dash-dash-dash lines are included for the purpose of illustrating portions of the brush that form no part of the claimed design. The dash-dot-dash lines are included for the purpose of illustrating boundary lines and form no part of the claimed design.