Reading the info at the top of the newbie forum might help:
https://forums.longhaircommunity.com...ad.php?t=68520
Why not let us type your hair?
F/N/C = fine, normal, coarse hair (the thickness of an individual strand of hair)
i/ii/iii = thickness of your whole head of hair. So for this you need to make a ponytail and measure your circumference.
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