Made with high quality rubber which is elastic and strong material, no damage no crease for hair. These rubber bands are disposable. The elasticity may be weakened after using once. When applying on thick hair requiring strong stretch, please select more than one rubber band to ensure secure and long-time hold. Whether you have thick hair, thin hair, curly hair, straight hair, long hair, or short hair, these rubber bands can hold up for all hairstyles such as braids, ponytails, dreadlocks, pigtails and so many other hairdos you like. Suitable for infants, toddlers, baby girls, kids, women, students, etc.