Features: Effortlessly conceal gray hair with this waterproof hair coloring brush featuring quick absorbing formula and natural looking coverage for last color retention. The ergonomic design combines gentle plastic bristles for scalp comfort with sweat resistant technology, ensuring smudge proof performances during active use. Ideal for busy professionals, fitness enthusiasts, and frequent travelers needing instantly root touch ups between salon visits. Perfect for morning rushes hour, outdoor workouts, or humid environments where traditional dyes typically fade. Its compactly build and messfree application make this coloring comb essential for maintaining vibrantly, sunlit ready hair color throughout daily activities. Specifications: Component: Plastic Size:Approx.4.6x8.50cm/1.81x3.35inch 3Option Color; Features:Quickly cover gray hair, natural color rendering, even coloring, long-lasting waterproof and sweat-proof Innovative combing design to ensure uniform distribution of hair dyes and suitable for various hair types Package Includes: 1pc hairs dye Comb note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.