100% HUMAN HAIR, NO TANGLE ◆ Skin weft hair extensions made by REMY human hair from young girls, no strange odor. Can be curled,straightened,dyed or bleached. Not easy to knot & tangle like synthetic hair, more comfortable for long-term use. Can be reused by exchanging the tape. 20 pieces per pack, 24 inches, total 40g. You may need 2 or more packs to make a full head.