Abstract: A single or multi-point hair extension device includes: an extending hair bundle comprising a plurality of strands of hair; a bundle tip collecting and fixing one end of the plurality of strands of hair for the extending hair bundle; an engaging loop extending from the bundle tip; and an attaching device for detachably attaching the engaging loop to strands of the user's original hair. The attaching device holds and anchors a portion of the engaging loop and the user's original hair, and the extending hair bundle, the bundle tip, and the engaging loop are fixed to one another permanently so as to form a hair extension assembly. When the attaching device is detached from the strands of the user's original hair and the engaging loop, the assembly is freed and reusable.

Abstract: A self-applied measurement kit for a hair replacement mold is provided. The kit comprises one shape wire, two side wires, one shape sheet and one domed support pad. The shape wire is adjusted to fit the desired hair boundaries and to be fixed on the head. The two side wires are draped downward toward the chin of the user and tied, so as to fix the shape wire in place. The shape sheet covers the head wearing the shape wire, so as to imprint the shape of the head, and the shape sheet is pinched to imprint the position and shape of the shape wire. The domed support pad keeps the molded shape wire and shape sheet from deforming. The two side wires facilitates fixing the shape wire on the head and imprinting the shape of the head and the shape wire fixed in place fitting the desired hair boundaries.