The CHI LAVA 4D� Hairstyling Iron features the power of CHI LAVA minerals and ceramic to create an effortless glide, providing less damage and overall healthier hair. Lava minerals offer gentle, consistent heat, which allows styling at lower temperatures. CHI LAVA 4D� Technology are two perfectly calibrated, Lava-coated-floating inner plates which deliver precise tension that allow you to easily smooth the hair and add brilliant shine in one pass. 2 additional Lava plates are continued onto the outer shell of the iron to prevent resistance and keep perfectly-smooth curls intact. The ultimate professional tool to achieve straight, curly, waved and refined volume.