FIG. 1 is a perspective view of a hair curler showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is an enlarged top plan view thereof;
FIG. 7 is an enlarged bottom plan view thereof;
FIG. 8 is an enlarged view of a portion of FIG. 2;
FIG. 9 is another enlarged view of a portion of FIG. 2;
FIG. 10 is an enlarged view of a portion of FIG. 4; and,
FIG. 11 is another enlarged view of a portion of FIG. 4.
The broken lines in the drawings illustrate portions of the hair curler and form no part of the claimed design. The additional broken lines demarcating enlarged areas form no part of the claimed design.