Revlon Perfect Heat Long Lasting Curls 3/4-inch Brush Iron Tangle-Free Bristles for Soft, Natural-Looking Curls 3/4-inch barrel features tangle-free nylon bristles for tight, bouncy ringlets with natural-looking finish. Three coatings of CERAMIC TOURMALINE help eliminate frizz, reduce heat damage, 165°C/330°F high heat locks in the curl quickly for flawless, long-lasting style. 40 Heat Settings with 165°C/330°F High Heat, Constant Heat™ 30 Secs Fast Heat-Up Auto shut-off Tangle-free swivel cord