Instant hair coverage: Designed with a rotating comb structure that guides the dye along the direction of your hair strands for quick, naturallooking coverage. Rich Color Adhesion Technology: Locks in bold color with precision, leaving hair lustrous and lively while resisting discoloration or dullness. Easy dyeing solution: Integrated comb teeth with dye components enable convenient application and precise control to prevent clumping. Portable and convenient: Slim penshaped design for easy storage and carry, providing quick color touchups in various situations with effortless application. How it works: The rotating comb structure ensures fast color attachment and seamless coverage by following the natural direction of the hair strands. Performance and durability: Delivers vibrant color that resists fading and dullness, maintaining a lively look between full colorings. Size and portability: Slim, penshaped form designed for compact storage and onthego use, suitable for travel, work, or spontaneous styling needs. Use scenarios: Quick root touchups at home between salon visits or during a busy workday. Travel or gym sessions requiring a fast color refresh without a full dyeing session. Special events where a natural, even color correction or touchup is needed for a polished appearance.