Pet Brush

FIG. 1 is a front left perspective view of a pet brush in accordance with the present invention; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a right side view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a top view thereof; and, FIG. 7 is a bottom view thereof. The broken lines illustrate portions of the pet brush that form no part of the claimed design.