What is a "curler"?

A hair curler or roller, commonly known as a curler, is a cylindrical device used to create curls or waves in the hair. It is typically made of foam, Velcro, or plastic material and is designed to be lightweight and easy to use. Hair sections are wrapped around the curler, which is then secured in place with clips or pins. The curler is left in the hair for a period of time to set the curls. Hair curlers come in various sizes and can be used on both wet and dry hair. They are a popular tool for achieving voluminous and textured hairstyles without the need for heat styling.