This is helpful if you want to dye or bleach your own hair roots.It is more helpful for people with long hair.Reduces the cumbersome process of picking up hair with multiple hair clips.If you are inexperienced in hair dyeing, it also helps when dyeing your family or other people.Helps to quickly carry out hair dyeing or chemical treatments. ?HOW TO USE? Put the clip on the top of the head so that it is perpendicular to the space to be dyed, bleached or chemically treated.After applying the chemical to the hair, twist the hair once and turn it over to the other side and insert it into the comb part of the clip.When one side is finished, repeat the same for the other side.