With a 1 1/4-inch large barrel and spring-activated lever, this curling iron features ultra-zone technology to lock your curls with the right, even heat. Advanced ceramic coating is specially designed for smoother curling. A protective cool tip provides you with a safe place to hold your hair in place while you curl, and the built-in safety stand allows you to place the tong down securely during styling. To ensure the correct styling temperature of 365°F is reached and maintained, the ultra-zone technology in the barrel recognizes each section of hair to lock in style, respect the health of your hair and ensure styles last throughout the day.