What it is: A set of eight hot rollers that feature T3's Tourmaline technology and a design reinvented for shoulder length and longer hair types. What it does: T3 has reinvented the classic hot roller for contemporary hairstyling and packaged in this travel-ready set. With advanced technology in each roller, every strand of hair will have volume, shape, movement and shine. The Voluminous Hot Rollers Set uses proprietary T3 Tourmaline technology, which emits maximum ionic, infrared heat. This technology safely penetrates the hair shaft, effectively styling the hair from the inside out while sealing the hair cuticle against frizz.