3 Types Precise Brush Design-- This root touch up dark brown uses a mascara-like brush, which come with 3 different brushes to colour every single hair strand and naturally cover grey hairs, very easy to use, brush on hair to dye, beard dye color, is safe to the skin or scalp. Natural Ingredients- The main ingredients of semi permanent hair dye hair mascara comes from natural plant pigment extracts. It is safe to use. PORTABLE SIZE-- this grey hair cover up root cover up is ideal for traveling, fits in pockets, backpacks, clutches and more. Take it out and use it anytime, anywhere. Lasts All Day-- this temporary hair dye is waterproof and smudge-proof. It can be used for covering gray hair, beard dye, eyebrows mascara, eyelashes mascara and more. A few seconds of use, can last all day How to use-- Brush with our precise brush head on the area with gray hair, brush 1,2 times to dye it. 100% coverage. Hair mascara dye is water resistant. It can be washed out with shampoo.