MACHINE MADE 150 density 100% HUMAN HAIR. THE HIGHEST QUALITY HUMAN HAIR ON MARKET. ALL BOB UNITS comes with combs ,adjustable straps and OUR CUSTOM BAND THAT gives extra support, allowing you to wear your unit AT EASE. OUR MINK HAIR IS DONATED FROM YOUNG FEMALE DONORS, WHICH MAKES THE HAIR STRONG & HEALTHY. DOUBLE MACHINE WEFT TO PREVENT SHEDDING. CUTICLE ALIGN TO PREVENT TANGLES. VERY SOFT. CAN BE CURLED OR DYED . HAIR WILL LAST 2 YEARS OR MORE IF CARED FOR PROPERLY. WEAR THIS UNIT WITH OR WITHOUT ADHESIVE.