6 Bright GreenYou can use this hair color comb to creating so many different looks;The length of the hair color comb is about 3.9(10cm) Safety & Easy to Clean The hair chalks non-allergenic and water-soluble and environmentally friendly and can last up to 3 day;Colors can be cleaned simply by washing hair as normal with water and shampoo. Note These hair chalk are very easily apply to the 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 hair one time. 2. Seal the chalk and dry the hair with hair dryer or fan. 3.Finalize your hair with gel or hairspray.And the chalk might be a little sticky. Applicable People and ScenesA party hit with the kids; Suitable for birthday,parties, Wedding, Club, Festivals, Cosplay,Engagement ,St.patricks Day,Easter egg,etc, creating you a beautiful and unique look for yourself. A cool gift for your family and friends. Easy to UseWith the design of fixed comb, they are easy to apply on your hair from top to bottom without stain your hands.Keep your hands color free. This hair chalk features a small comb applicator to simply brush on your hair.