Flexi rods are simple to use andprovide great results for any occasion. Gone were the days where you had to use a curling iron to achieve curls. With the use of flexi rods, you can achieve a beautiful style without the use of direct heat. Heat-free = no damage = low manipulation = healthier hair!The activity for which the curling iron is most commonly used iscurling pieces of hair. However, curling irons can also be used to straighten hair or to warm hair for easier styling. Wig makers may use curling irons to create waves in both natural and synthetic wigs.Curlingironsofferexcellent precision controland are great for beginners. The clamp maintains a firm hold on hair for easy styling. They are generally available in a great variety of sizes (usually from 3/8 to 2+) and heat up quickly and easily.