2Pack Safe and Convenient Comb Hair Dye, Portable Hair Dye Comb For Gray Hair Coverage, Waterproof and Sweat-Proof, 2 in 1 Instant Dye, for Women & Men(BLACK)Portable Hair Dye Comb For Gray Hair Coverage Say goodbye to the long wait for traditional hair dyeing. Use our hair dye brush, natural color in minutes. The hair dye combines a built in comb applicator, making it easier than ever to achieve even coverage. This is a one time emergency color touch up use. It is not suitable for full head application and multiple excessive applications on the same area. Pay attention to control the amount during use. Do