I have questions
I think this may have synthetic hair mixed in.  I used my flat iron on the hair at 380 degrees as I normally would on my hair and or extension hair and it seems to have burned some strands making the texture feel very wirey and rough.  I've worn extensions for years and years so I know what to expect and how to treat the hair. This was only after about 2 days of having it in.  I see now it says don't use heat over 180 and don't blow dry it which leads me to believe this cant be 100 Remy human hair.  Human hair extensions can be treated gently like your normal hair with out causing this kind of damage. I went through and trimmed it and deep conditioned which helped a little but overall it feels stiff and dry especially on the ends and upwards 4 or 5 inches.  Its kind of suspicious that 20 inch was under $60.  I'm super sad because its a perfect color match.
Rating: 2 stars