Spring - style clamp and Marvel like rotating handle makes it easy for wrapping the hair around the barrel evenly and for quick and easy style. With heat, the advanced ceranyx (ceramic + onyx) barrel is constantly radiating far - infrared rays and negative ions into the hair. This helps to reduce damage and give a high gloss and silkier results to the hair. Heats up quickly with a maximum temperature of 430 degrees F. Three heat settings allow for application to all kinds of hair. When the temperature is up to workable grade, the circle will change color to white. Setting is activated when no movement is detected in 50 minutes.