The curling iron is composed of international standard models: 19MM .25MM. 32MM. 38MM. At present, the mainstream hairstyle uses the 32MM model! It is divided into heating body, handle, power cord, temperature control system and other components! It can be adjusted Warm is better than non-temperable! Curling irons can create a variety of curls such as: big wavy curls, drooping natural curls, shoulder curls, broken curls, wheat perm, inward curls, and outward curls.