Hair Straightener

FIG. 1 is a rear, right and top perspective view of a hair straightener, showing my new design;

FIG. 2 is a front, left and bottom perspective view thereof;

FIG. 3 is a perspective view of the hair straightener in the closed configuration;

FIG. 4 is a front view thereof;

Fig. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is an enlarged top plan view thereof; and,

FIG. 9 is an enlarged bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the hair straightener that form no part of the claimed design.