FIG. 1 is a perspective view of a first hair curler head of a hair curler, shown separately for ease of illustration;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a perspective view of a second hair curler head of the hair curler, shown separately for ease of illustration;
FIG. 10 is another perspective view thereof;
FIG. 11 is a front elevational view thereof;
FIG. 12 is a rear elevational view thereof;
FIG. 13 is a left side elevational view thereof;
FIG. 14 is a right side elevational view thereof;
FIG. 15 is a top plan view thereof;
FIG. 16 is a bottom plan view thereof;
FIG. 17 is a perspective view of a third hair curler head of the hair curler, shown separately for ease of illustration;
FIG. 18 is another perspective view thereof;
FIG. 19 is a front elevational view thereof;
FIG. 20 is a rear elevational view thereof;
FIG. 21 is a left side elevational view thereof;
FIG. 22 is a right side elevational view thereof;
FIG. 23 is a top plan view thereof;
FIG. 24 is a bottom plan view thereof;
FIG. 25 is a perspective view of a fourth hair curler head of the hair curler shown separately for ease of illustration;
FIG. 26 is another perspective view thereof;
FIG. 27 is a front elevational view thereof;
FIG. 28 is a rear elevational view thereof;
FIG. 29 is a left side elevational view thereof;
FIG. 30 is a right side elevational view thereof;
FIG. 31 is a top plan view thereof;
FIG. 32 is a bottom plan view thereof;
FIG. 33 is a perspective view of a fifth hair curler head combined with a handle of the hair curler shown in a configuration of use;
FIG. 34 is another perspective view thereof;
FIG. 35 is a front elevational view thereof;
FIG. 36 is a rear elevational view thereof;
FIG. 37 is a left side elevational view thereof;
FIG. 38 is a right side elevational view thereof;
FIG. 39 is a top plan view thereof;
FIG. 40 is a bottom plan view thereof;
FIG. 41 a perspective view of the first hair curler head combined with the handle of the hair curler shown in a configuration of use;
FIG. 42 a perspective view of the second hair curler head combined with the handle of the hair curler shown in a configuration of use;
FIG. 43 a perspective view of the third hair curler head combined with the handle of the hair curler shown in a configuration of use;
FIG. 44 a perspective view of the fourth hair curler head combined with the handle of the hair curler shown in a configuration of use;
FIG. 45 is an exploded perspective view of the hair curler;
FIG. 46 is an enlarged view of portion 46 shown in FIG. 34; and,
FIG. 47 is an enlarged view of portion 47 shown in FIG. 40.
The broken lines in the drawings depict portions of the hair curler that form no part of the claimed design.