T3 Micro Voluminous Hot RollersT3 has reinvented hot roller technology to create contemporary looks with voluptuous waves or curls and incredible shine. With advanced technology in each roller, every strand of hair will have volume, shape, movement, and shine. The Voluminous hot rollers set has been designed with proprietary Tourmaline technology and a ceramic core, which emits ionic, infrared heat to safely penetrate the hair shaft, effectively styling the hair from the inside out