Safe MaterialHair Chalk is made of safe and environmentally friendly material, FDA certification, non-toxic and harmless, will not hurt your hair and skin, also suitable for children. Multiple Colors10 bright colors make your hair as vivid as yourself. All colors can be combined, easily change your look and make you more attractive. The comb head is removable. When the dye is used up, you can replace it yourself. Dye FastHair color chalk comb is easy to use. Just wet your hair and brush hair with hair color chalk comb. Then dry with hair dryer. Easy to CleanThe hair chalk is non-toxic, non-allergenic and water soluble. Wash the hair with shampoo, the color can be removed within seconds. Notice When using or cleaning, avoid contact with eyes and lips. Multipurposehair chalk changes your hair color in minutes. Perfect for all kinds of parties, clubbing, festivals, cosplay, etc., makes your hair unique and more attractive.