Spiral curling iron creates perfect spiral curls. Tourmaline ceramic barrel makes smooth curls. Heats up to 390 degrees F. On/off switch with indicator light. 30 day limited warranty. Create perfect curls with the Z-Comfort Spiral Curl Ceramic Curling Iron. Constructed with a tourmaline ceramic barrel, this curling iron is crafted with longevity in mind. It heats up to 390 degrees to provide you with the long-lasting curls you crave. Color: Green.