The hair dye is made of non-allergenic, non-toxic ingredients, making your hair and skin healthy and friendly to kids.It is water-soluble, odorless,and environmentally friendly; Colors can be cleaned simply by washing hair as normal with water and shampoo.As these colors are NOT PERMANENT, you can keep your new look as you like These hair chalks are very easily applying to light hair like gray and blond hair.But it is a bit difficult for the dark or brown hair, you can follow the step:1.Apply the color to a handful of hair one time. 2. Seal the chalk and dry the hair with a hairdryer or fan. 3. Finalize your hair with gel or hairspray.And the chalk might be a little sticky.Kindly understand there could be some slight differences in the color tone of the pictures and the actual item Our hair chalk with the design of fixed comb, they are easy to apply on your hair from top to bottom.The shawl and gloves in the package will help you easier to finish it without stain you