CROC XL Dual Infrared — 1.75" plates, 270-450°F, dual infrared Extra-wide 1.75-inch plates cover more hair per pass, so thick or dense hair takes fewer passes to straighten. SPECIFICATIONS - 1.75" Nano Black Titanium floating plates - Digital control, 19 temperature settings from 270°F to 450°F - 65W, double ceramic heaters with instant heat recovery - Vented housing releases excess heat - Automatic shut-off after 60 minutes of inactivity - 8-foot swivel cord WHAT THE INFRARED DOES Infrared heat warms the hair shaft rather than only its surface, which is why the plates can work at a lower setting on fine hair. Independent electron-microscope analysis by CIMAV, a Mexican federal research laboratory, compared human hair before and after four passes with a CROC infrared iron at 380°F. The report found the cuticle "better sealed or aligned, resulting in a visually smoother surface." (CIMAV report SEM 20-2453, 3 December 2020.) Black titanium plates reduce static and glide without snagging.