S-Quattro Tourmaline is the straightener that, thanks to the tourmaline plates' coating, gives shine to hair while safeguarding the health of the hair. The effective properties of tourmaline, a precious stone and natural source of negative ions, eliminates frizz while maintaining the right level of moisture on the hair. In addition, it generates far-infrared heat that acts gently while safeguarding the health of the cuticles. Straightening hair will be easy and pleasant thanks to the convenience of this straightener equipped with 4 tilting plates, 360° swivel cord and ultra-thin, lightweight and handy design. 4 tourmaline ion heating plates. The tourmaline, that covers the heating plate, provides continuous protection from the high temperatures because it emits far infrared heat which penetrates the center of the hair and spreads from the inside to the outside, providing maximum protection to the health of the cuticle.