1. Easy to use, all well done is a few minutes.
2. Use special agents. The color of the hair will be durable brilliant. The agents protect the hair unharmed from diving. Supply the nutrition to repair the hair. They may also avoid static electricity influence and make the hair gentle agreeable moisturized.
3. A set of hair dying comb may be used many times. The sole tube can be charged with colored or black dying liquid. To stop leaning, keep fixed type. No negative action.