These will definitely not break. They stretch but unlike others when you take it out it goes back to shape. You know how once you used them a few times they are out of shape or just don't hold as well. These don't do this. They work great for my hair which is funny. When my hairs wet it's thick but when it's dry or been down a few days my hair is really thin. So It goes back to shape without worry I can use it with both settings. Holds firmly to my head.
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