The Kitsch ceramic thermal rollers pump serious long-lasting volume into your waves and curls by adding lift at the roots. The set comes with 8 rollers in various sizes: Two Large (2.25'') Rollers Four Medium (2')' Rollers Two Small (1.5'') rollers Key Benefits Adds long-lasting volume to waves and curls Self-gripping roller material is gentle on hair without pulling or snagging Ceramic-coated roller core helps to evenly distribute heat & sets curls while cooling for volume that lasts Suitable for most hair lengths and textures How to Use Use as the finishing touch on almost dried hair. (For the best results on curly hair textures, blow-out hair smooth and apply rollers while hair is still warm.) Insert the rollers one as a time, focusing on areas where you wish to have the most volume. With curlers in place, do one last shot of heat with a blow dryer to warm the rollers and allow to cool. Once hair is completely cool and dry, gently remove the rollers and style as you wish.