The hair tie, although the comfort ago super (no pulling hair, no annoying metal lock of hair coming away), but they grind out unfortunately after a few days out. Under hot water they pull back together though, but no longer on output and how many times you can do it until they are so brittle that they break, is also questionable.
That they do not even a week with me "survive" without auszuleiern, the price is really too high ...
