Hair types can be divided into four categories, which are then further divided into subcategories. Generally the most popular hair types are straight, body wave, curly, loose wave; hair texture describes the circumference of the hair. There are three different hair texture types - fine, medium and thick. It is what we often call 130% density, 150% density, and 180% density; hair lace generally has 4×4 lace closure, 5×5 lace closure, 4*0.75 T Part Closure, 13×4 lace frontal; hair type has the following Four kinds, Brazilian Hair, Peruvian Hair, Malaysian Hair, Indian Hair; the above four categories are the most commonly used indicators to describe hair.