Hair Extension

FIG. 1 is a perspective view of a hair extension embodying my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an enlarged view of the selected portion 8 in FIG. 1 ; and,

FIG. 9 is an enlarged view of the selected portion 9 in FIG. 5 .

The broken lines shown in the drawings depict portions of the hair extension that form no part of the claimed design. The dot-dash broken lines represent boundaries of the enlarged portions and form no part of the claimed design.