2 Inch Ceramic Barrel Perfect For Long Hair: The IKV 2 inch curling iron is suitable for long hair, but not suitable for short hair or medium length hair. 2 inch extra long barrel can do more curls in one time compared to normal one, saving time tremendously and the curls will last all day. Create loose wavy curly hairstyles. The 2 inch curling iron is recommended for long hair. Reduces Hair Damage and Frizz: The barrel of curling iron 2 inch is covered with double ceramic coating to prevent heat damage. When the iron works, it releases millions of negative ions to remove frizz and protect hair, resulting in glossy and bouncy curls.