Perfect way to try out the TwistBand product line. They are made of a stretchy material that may not hold as tight as normal ponytails, but that is sort of the point.
I tend toward pretty bad headaches with normal ponytails but I have to have my hair up at work. These are a perfect alternative. They keep my hair up and look rather cute doing it.
The variety of sizes gives the perfect "test-run" if you are a newbie to the brand and the price is reasonable for the amount of "twistbands" you get.