I was only a little skeptical of this new Trend..dann I've but eventually slammed and regret not a bit! I have very thick hair and need of normal hair bands always 5-8 pieces. However, these wear out very quickly. Of the invisibobbles I only need one hair rubber and my mane keeps super! And even after 7 hours wearing pigtail, no marks can be seen in my hair. A pleasant side effect is also that my hair does not chirp when loosening the braid and therefore do not tear.