Heat retaining and anti static for faster longer lasting curls the denman thermoceramic rollers are perfect for girls who love to create curls a fast and simple way to add volume without the need for clips and pins theyre a style divas best friend using self grip silver metallic thread the extra large denman thermoceramic rollers smooth and add shine while creating unrivalled curls heated with a hairdryer then cooled while in the hair these styling accessories provide stronger