Didn't work for me [SEP] I was pretty excited to try these based on all the good reviews.  I have thick, semi-coarse, 3b/3c curly hair.  These didn't work for me using as is, or even wrapped twice around.  They did not grip my hair or hold it tightly at all.  Even wrapped twice around, my ponytail kept slipping looser and looser, and that was just wearing it for about half an hour.  Also, I could tell that if using it wrapped twice around it would easily lose it's shape in a short time.  Glad these work well for so many, but not for me.