Review title is Won't curl, why not? [SEP] Honest Review:<br /><br />First time purchasing from this buyer.  I received my item on time.  This unit is not 180% density, its more 130%-140%, I would have been shocked if it was 180% at this price point.  I do not believe this unit is 100% human hair because it will not hold a curl...it has NOTHING to do with the hot temps the east coast is experiencing, because I curled the hair in my home at 400 degrees and it simply will not hold a freakin' curl.<br /><br />It forms a curl; however, within minutes the curls were gone, I could not even get out the house before the darn curls were gone.  I say it has some human hair because I can smell human hair while curling.  I tried curling the hair closer to the root; however, it would not even bend let alone curl.  The curls I was able to form were closer to the end, and those curls were GONE in no time.  Two Stars because the hair is soft, arrived on time and 20" as stated.<br /><br />I will not purchase again from this seller, because I am not confident I will receive what I paid for.