Curling wand sizes: 18/9mm, 25/19mm, 32mm and Twisted barrel4 in 1 Professional Hair Curling Wand and Curling Iron Set -Whether you love to mix it up at home or you?re investing in your salon business, thier 4-in-1 professional curling set has all the options you need to create everything from swirling curves to big waves to rockin? ringlets. With tourmaline cones that prevent wear and tear on your hair and negative ions to make your locks smooth and shiny, these curling wands come in four versatile sizes: 18/9mm, 25/19mm, 32mm and the Twisted barrel to create a variety of stunning hair designs. All wands feature a swivel, tangle-free power cord.